Suam es una chica traviesa que creció en los barrios bajos. Ella se enamora de Danurut, un buen policía, la primera vez que lo conoce debido a su buen aspecto y amabilidad. Se conocieron previamente en la estación de policía cuando Danurut ayudó a Suam a salir de algunos problemas debido a una acusación falsa. A Suam se le pide entonces que se convierta en espía de la policía por un comandante adjunto encubierto llamado Tuan. Su misión es espiar y reunir evidencia sobre un influyente criminal llamado Sia Ha. Tuan cree que el tío de Danurut es parte de la banda de Sia Ha y también sospecha de Danurut. Suam se involucra de nuevo con Danurut cuando malinterpreta que ella es la amante de Aek, que es la prometida de su primo. Contrata a Suam como su esposa falsa para mantenerla alejada de Aek y también para ayudarlo a evitar a su ex-novia Suchada, que también es hija de Sia Ha. Tuan cree que esta es la oportunidad perfecta para espiar a Danurut, así que Suam acepta su oferta. Suam y Danurut discuten y pelean todo el tiempo. Ella se muda a su casa fingiendo ser su esposa porque él necesita que ella siga sus órdenes mientras ella debe espiarlo!

Suam's scholarship is cancelled since Darika is a friend of the faculty dean and she wants to get back at Suam for fraternizing with Aik. It also turns out that Darika's wedding gown designer, Suchawadee, used to date Anurut. Meanwhile, Pennueng and Pavinee's son, Nai, kills himself by jumping off a building. Further investigation reveals the involvement of Atom, Nai's girfriend and the fact that Nai had depression. Thuan attempts to recruit Suam to become a spy for keeping an eye on Sia Ha.

Suam gets into a fight with Prakob when he tries to take Nut out to beg and ends up at the police station after she assaulted him. Suam decides to accept Thuan's proposal to work for him as a spy. Neungthida comes back from studying overseas but she is now cold towards Suam since she believes that Suam is trying to lure her Aikkasit away from Darika. Suam gets kicked out of her apartment due to Darika's interference. Danurut almost gets run over by a care but Suam saves him in time. Thuan gives Suam missions to infiltrate Darika and Aikkasit 's wedding as well as Sia Ha's house to find some leads on the latter.

Suam is fired from her dishwashing job due to Darika causing a scene and she finds work at a convenience store. Danurut proposes that Suam marries him for three months so she can graduate and get a job before Darika can wreak more havoc on her life, while his married status can stop Suchawadee and Neungthida from bothering him. Thuan agrees that Suam should marry Danurut as a method of infiltration.

Padet keeps Neungthida company as she battles the heartbreak from Danurut and she starts to warm up to him. Suam and Danurut open up about the reason why they both don't believe in love. Thuan promotes Suam to a fully-fledged spy and introduces her to the rest of the Secret Service "Snow White" which also includes Padet and Somsook. Danurut tries to interrogate Sia Ha and Chuchai but to no avail. Toom is also killed while in custody.

Thuan learns that Suam can actually sees ghost when she told Somsook the winning lottery number with the help of the spirit of the latter's mother. Thuan decides to let Suam be a spirit medium to gather more intel from the people in Sia Ha's community. Danurut and Padet find out that Bee is Paew's actual boyfriend and not Toom. Toom's wife gave them a phone that Toom hid in the apartment, which turns out to be Paew's. Suam is able to crack the password to the text app with Paew's help. Danurut sends text messages to Bee through Paew's phone to try and contact him.

Suam disguises herself as a shaman to lure out Sia Ha's men. However, Prakob interferes with the ritual. Danurut manages to get ahold of Bee and decides to keep his hideout a secret from everyone, even Suam. Everyone wonders why Danurut refuses to talk about Bee and his hideout. Bee tells Danurut the truth of what happened and asks if he can trust Danurut or not.

Paew's parents come to the police station and tell Danurut not to reopen the case. Danurut becomes puzzled due to their sudden change of heart until he realizes they've been bribed. Suam refuses to get fired because she doesn't want to return to her old house. Everyone starts to suspect Direk, Danurut's uncle.

Danurut decides to continue working on the case in secret. Darika almost runs Suam over with her car. Suam visits home and gets into a fight with Prakob again when he tries to peep on Oy when she's in the bathroom. Suam returning home with a beaten-up face alarms Danurut and everyone. During a pubic seance, Suam is shot in the shoulder by an unknown assailant.

Suam goes to get her gunshot wound treated at the hospital. As Danurut and Padet try to get to the bottom of this, Darika becomes the prime suspect. Danurut confronts Darika, to which she admits to being the culprit. Darika goes to get help from her dad, who is about to enter into politics, since Danurut refused to help her. Aik comes to see Suam and tells her that he's getting a divorce and wants her back. In the meantime, Danurut feels drawn to Suam's mother since she reminds him of his mom. Padet and Neungthida get into a situation with Neungthida's parents which seems to spark their relationship. Danurut takes Suam on an overnight trip where they both get to learn more about one another.

Danurut learns that his uncle is planning to get into politics after he asks Danurut to help with Darika's case. Kom admits that he has been helping Sia Ha, who took care of his mother when she was sick. Kom's successful in convincing a suicidal student to change his mind from jumping off the building. But, Kom decides to jump off the building instead to escape from being controlled by Sia Ha after attempting to quit. The team suspects that Chuchai is suffering from brain cancer. Sia Ha is suspicious of Chuchai whose symptoms become more obvious.

The team suspects that Direk and Sia Ha could be putting on an act that they dislike each other. Su invites Danurut and Suam to the launch party for her new collection. Neung and Suam make up after Suam explains her side of the story. After hearing Danurut talk about his trip to Suanpueng with Suam, Boonyeun almost passes out. The team finds out that Suam's mother lived in Suanpueng before she moved. Danurut discovers that his father was the favorite son and that Direk was forced to become a police officer. Da's family and Aik's family meet to discuss the problems between them to move forward.

Neung asks Aik about what really happened between him and Suam that made her mother kick Suam out of the house. Suam and Neung make up after having a heart to heart. Rut sends his colleagues to arrest Suam while she was a medium and decides to leave her in jail. Aik bails her out and sends her home making Rut extremely jealous. Rut and his uncle attend Su's launch party.

Suam passes out in the bathroom after having a drink given to her by a waitress. Sia Ha carries her out of the bathroom and returns her to Rut. Rut is sure that his uncle is working with Sia Ha after seeing the footage from the surveillance camera. Sia Ha tells Prakob that he wants Oy while Suam tries to convince her sister that he isn't a good person. Suam tells Neung about the fake marriage to ensure that she will get her man back after seeing her hug Rut. Neung explains that she did it to make sure that she had no feelings for him and tells Suam that she started dating Padet. Neung confronts Suam about seeing her leave a motel with Padet.

Suam tells Neung that she and Padet are not together and she believes her. Paew's parents file a report to get Danurut arrested for killing their son-in-law. Danurut lets Sia Ha know that he is aware that Sia Ha is behind the allegation and is working with his uncle. Danurut unexpectedly meets his uncle and Su there. Sia Ha tells Chuchai to postpone the transport after Danurut warned him about the police checkpoints. Chuchai decides not to postpone. Danurut tells Suam that he wants a divorce while Suam tells him how she feels.

Suam and Danurut get a divorce. Sing reveals his secrets to Suam and her family, leading to a big fight which ends in his demise and Suam being hospitalized. During her coma, Suam meets her real father in her dream and learns something about herself. Meanwhile, Ha holds a meeting about his next delivery with Danurut and Direk, in which he exposes Direk to his nephew.

Suam wakes up after seeing her father in her dream. Sia Ha leaks a clip from his room showing Danurut handing Chuchai a drink before he collapses and dies on the floor. Sia ha tells Danurut and his uncle not to worry about the clip. Suam goes to Danurut's house and finds Su in his shirt. Suam takes a cab to the headquarter and discovers that Danurut is driving the cab. Thuan announces that Danurut is the seventh dwarf in the team. He updates the team about the delivery on Monday and heads out to his house in Suanpueng with Suam after they made up. Danurut and Thuan arrest Sia Ha, but they are stopped by Direk. Sia Ha shoots Danurut and he falls into the river.