When happy-go-lucky Tanya Arora, crushing on her childhood sweetheart Rohan, makes a 'death wish' against her love rival Mehek on a new dare app called 'Knock Knock', it sets off a web of blackmail her, her friends and family.

A woman abandons her newborn, but her sister rescues the baby girl from the seashore and names her Mannat. Twenty-three years later, Mannat dreams of becoming the world's best chef.

The idyllic life of Tarun shatters after saving a girl heroically. He discovers himself in the limelight, leaving his family vulnerable to a grave danger as well as unfolding his hidden past.