Caution) is a 1989 Indian Malayalam-language mystery thriller film directed by K. Madhu, starring Mammootty, Mukesh and Jagathy Sreekumar.

During the course of investigation, CBI Sethu discovers that Aswathi, just 5 feet 4 inches tall, could not have reached the height of the ceiling hook to hang herself, even with the assistance of the tallest furniture.

Also, the grease stains on the saree used to commit suicide gave the indication that the culprit had used it to pull the body up through the ceiling hook.

Thirdly, Mohan, boyfriend and fiancée of Aswathi also becomes a suspect as he could not provide an alibi for the night of the murder.

Lastly, the local goon Babu hired by Viswam is apprehended and during interrogation reveals that Aswathi was already dead by apparent suicide when he broke into her room.

Upon further investigation, it is learnt that the saree used to hang Aswathi was a brand new piece and was purchased from a nearby KSRTC station.

Firstly, only a person who is close to Aswathi could have gained her trust as she didn't put up any fight against the perpetrator.

In a separate scene, it is revealed Janardhanan Nair had an affair with one of his clients, Rukmini, who gave birth to Aswathi.