| Director | Akhil Sathyan |
|---|---|
| Budget | ₹30 crore |
| Box office | ₹150 crore |
Prabhendu Namboothiri is an aspiring guitarist born into a traditional Brahmin priest family in Palakkad who is part of a musical troupe. Though he was born into a Brahmin family, he is now an atheist completely staying away from traditions, temple and rituals. With the troupe about to go on tour to Europe, his visa application is rejected due to budget constraints, and he returns to his hometown of Palakkad. Unable to find stable work, he agrees to temporarily assist his cousin Roopesh, who works as a priest and begins to earn money. Despite his atheistic views, Prabhendu performs well due to his extensive training in the Vedas. After Roopesh meets with a freak accident, he requests Prabhendu to take over his existing commitments. One of these is an exorcism ritual for a teenage boy, Avinash, who claims to see a young woman constantly approaching him and suffers from a loss of appetite. To Prabhendu's surprise, the ritual appears successful, and Avinash returns to normal. Now he earns large amounts of money too.
Soon after, Prabhendu begins experiencing strange incidents, such as his WhatsApp profile picture changing unexpectedly and unfamiliar items being ordered from his Amazon account. One night, he encounters a mysterious young woman in his room who abruptly disappears. These encounters continue, and the woman eventually reveals that she is the spirit exorcised from Avinash. Visible only to Prabhendu, she has no memory of her identity or past. After assisting him in an audition for a Bollywood music director, the two develop a close emotional bond, and he nicknames her “Delulu.”
Delulu supports Prabhendu in his musical pursuits and encourages him to reconnect with his estranged father following the death of his mother. Meanwhile, she attempts to recover her lost memories. After Prabhendu moves to Mumbai, he grows closer to Saadhya, the manager who helped him secure his opportunity. As Delulu gradually develops romantic feelings for Prabhendu, he hesitates, stating that such a relationship is impossible and expressing his feelings for Saadhya instead.
Following a near-fatal road accident, Delulu regains her memories. She recalls that her real name is Maya Mathew Manjooran and that she lived in Kuttikkanam, Idukki. She had been in love with her senior and was traveling with her family to confess her feelings when she met with a vehicular accident and was declared brain-dead. It is revealed that Avinash had accompanied her younger brother to the hospital upon hearing of the accident.
After fully recalling her past, Maya embraces Prabhendu, allowing him to experience her memories. As he comes to understand her life and emotions, he sheds a tear. With her story acknowledged and her existence understood, Maya disappears peacefully.
Following this, Prabhendu confides in his uncle, Prahladan about Maya. He reflects on how Maya's parents were never able to see the man she loved and expresses a desire to offer them some form of emotional closure. Acting on this, Prabhendu later travels to Kuttikkanam and meets Maya's mother Annie, introducing himself as someone close to her. When she asks if he was the person Maya loved, Prabhendu pauses before saying yes to her, choosing to comfort her family.
As he leaves the house, he feels a gentle breeze, recalling Maya's earlier description of it as a sign of her presence. In the end, guided by her memories and influence, Prabhendu fulfills his dream of becoming a musician, with Saadhya in his life.