Strange events take place in the Nilgiri Valley School that seem to be connected to Vedant, a 10-year-old new student. When the batch of 2007 returns for its reunion, Adhiraj Jaisingh, an ex-student must face what he did fifteen years ago. But things take a horrifying turn when Vedant and Adhiraj's paths collide. A dark secret begins to reveal itself threatening the lives of everyone on campus.
An incident in the locker room after lights-out leaves Vedant in shock. Gossip spreads across the campus following a gruesome killing. The Old Boys of the batch of 2007 return for their reunion, among them is Adhiraj Jaisingh, who seems to be hiding something.
A nightmarish incident in the swimming pool leaves Adhiraj shaken. A mysterious mark reappears. Supriya tries to help Vedant. A shocking encounter in the assembly hall brings back memories of Ninad. The Dean takes a call. The Old Boys bring up the past. Adhiraj makes a connection with Vedant. The Shadow Boy reveals itself and an Old Boy disappears.
Vedant teaches his classmate a lesson. Supriya helps Adhiraj find a clue to Ninad. Adhiraj drives to Kotagiri for answers. Instead he faces an unexpected truth that forces him to relive the events of the last day of school. Adhiraj’s guilt is finally revealed. At the ceremony to unveil Dean Vyas’s statue, a horrifying incident leaves the school in shock. Vedant reveals his plan to Adhiraj.
Vedant remembers what happened in the Dean’s bungalow the night the puppies were killed. The school is reeling from Suyash’s death. Adhiraj grows more desperate in his search for Ninad. The dark force gripping the school grows stronger as the Old Boys cannot leave the campus. Sarthak knows the truth about Vedant.
The Old Boys grow desperate as Police Officer Bedi takes over the investigation into Suyash's death. Sarthak learns his lesson. Supriya takes a questionable call about Vedant that leaves her shaken. As Adhiraj delves deeper into the past, a skirmish between the Old Boys reveals a shocking truth about the last day. A gruesome incident at the construction site uncovers a dark secret.
A shocking discovery rocks the school as the investigation takes a turn. Meanwhile, Supriya takes Vedant to a hospital outside the campus. Her dark past is revealed as she learns the truth about Vedant. Dev faces off against Officer Bedi, while Adhiraj finds an unlikely ally and pieces together the events of the last day. A final confrontation leads to an ominous end.
The campus is in the grips of terror as the truth comes to light and Ninad goes on a terror path of revenge. Officer Bedi receives a mysterious sign. Supriya reels from the horror at the hospital as Vedant is still missing. Adhiraj is a man with a plan, even as Dev makes a run for it. But can he escape his fate?
