In a series of events involving a stolen diamond, Krishna and Hema get caught in a time machine and travel through the centuries, encountering historical figures and exploring futuristic worlds.

P.C. 369 is a 1987 Indian Malayalam film, directed by P Chandrakumar. The film stars Suresh Gopi, Mukesh, Rohini and Maniyanpilla Raju in lead roles. The film had musical score by KPN Pillai.