A serial killer is murdering school girls, and a newbie cop has to track him down before the victim count increases.
You can now watch Ratsasan online on the following streaming providers in the United States.
| Directing | Ram Kumar | Director |
| Editing | San Lokesh | Editor |
| Production | G Dilli Babu | Producer |
| Production | Dinesh Kannan | Executive Producer |
| Production | K Pooranesh | Executive Producer |
| Production | S S Sridhar | Production Executive |
| Writing | Ram Kumar | Screenplay |
| Camera | P. V. Shankar | Director of Photography |
| Sound | Ghibran | Original Music Composer |
| Sound | Kannan Ganpat | Sound Mixer |
| Art | A Gopi Anand | Art Direction |
| Editing | Prasanna GK | Editor |
| Costume & Make-Up | Vinoth Sugumaran | Makeup Artist |
| Crew | Rekha D'One | Public Relations |
| Crew | Suresh Chandra | Public Relations |
| Crew | Vicky | Stunt Coordinator |
| Costume & Make-Up | A Keerthi Vasan | Costume Design |
| Art | G. V. Perumal Varadhan | Assistant Director of Photography |
