Twenty-seven-year-old Tanie lives a monotonous life with no real friends, no love life, and a sad job. She spends her weekends with her not-so-exciting boss only for free alcohol. That’s when she runs into Sumer, her former best friend, after seven years. A moment sparks off the memories and transports them back in time.

Despite the awkwardness and tension, Sumer and Tanie reconnect and remember the time when he came into Tanie’s life, as a neighbour first, then as a friend and eventually as her best friend. However, their relationship changes when they meet their respective partners.

Sumer sets up Tanie on a date, but she walks out mid-way and reaches his film set only to discover a shocking truth. A glimpse into the past reveals Sumer and Tanie's first fight, after which Sumer broke up with his then-girlfriend, Laika.

Sumer reaches Tanie’s house to clear the misunderstanding between them. He helps her set up her new house and spends the night at her home. While in the past, Sumer gets suspicious of Tanie’s then-boyfriend and decides to expose him.

When Tanie’s suggestion on Sumer’s set backfires, they end up having a huge fight. The two come together once again when a common friend is visiting London. In the past, Sumer is seen as convincing Tanie’s mother to let her pursue her MBA at Cardiff. As they parted ways, Sumer and Tanie promised to continue to be best friends.

At the common friend’s behest, Tanie decides to make amends with Sumer. However, before that, she discovers a deep secret about his life, which could change everything between them. In the past, Tanie, despite her new life, misses Sumer, who surprises her with a decision about his life.

In the present, Tanie realises that she has feelings for Sumer, despite all these years. While in the past, Tanie tags along with Sumer to a party in Cardiff, only to find both of their lives changing after it.

Tanie is all set to confess her feelings to Sumer, but a sudden situation changes everything. A peek into the past reveals how Tanie and Sumer realised an important life lesson and decided never to fight again.

Sumer is leaving London and Tanie’s life. Will the two realise their feelings for each other especially after everything they have been through?