When a gruesome murder occurs in the National History Museum in Sarajevo, Inspector Edib is called in to investigate.

As the murder investigation continues, the son of the former museum director appears as the only witness and soon becomes the only suspect. Things take an unexpected turn when the dead body vanishes.

The investigation becomes more complicated as a mythical artefact known as the Haggadah goes missing from the museum.

Selma, the museum's director and Edib's ex-girlfriend, gets arrested after they spend the night together; the police chief suspends Edib and advises him to go on a vacation.

Edib sinks in grief and alcohol; the police conclude Selma's death to be suicide and close the investigation; at the funeral, Edib sobers up and plans to carry out his own investigation; Dino gets desperate; Senči sets up an ambush.