A chief minister books a complete compartment of a train for his son as a surprise birthday gift. But the compartment S5 turns into a graveyard for everyone who is inside.

After five years, a group of college girls plan for a reunion party at a farmhouse situated at the outskirts of the city. However, they get stuck in the farmhouse owing to the nationwide lockdown. During their stay, they experience paranormal events that leave them in a state of panic.

Pranavam is a gripping murder mystery that revolves around Karthik, a fashion photographer arrested for killing his wife. During the interrogation, Karthik tries to prove his innocence but fails. Will the truth come out?