Koodum Thedi is a 1985 Malayalam film directed by Paul Babu. The film stars Mohanlal, Radhika Sarathkumar, Rahman and Nadhiya in lead roles.

The film revolves around a middle class Malayalee family. Problems arise when the eldest son alienates his father and gets thrown out of home. The film portrays the other members struggling between the two.

Nandita is happily married to Mukundan. One day, she happens to meet her childhood sweetheart Rajeevan and they become intimate friends. But they decide to part ways as they are already married.

Basheer (Jagathy) is rescued by a cargo ship while lost at sea. Basheer has had a partial memory loss and he struggles to find out what has happened to him. The captain of the ship (Lalu Alex) tries to get him back to land, but he runs into several legal troubles due to the lack of documents with Basheer to prove his identity. Bhaskara Pillai (Mamootty), a lawyer decides to help out Basheer seeing his plight. The plot thickens when there's an attempted murder on Basheer.

After a keenly fought election, MKR becomes the new chief minister. When the opponents hire a psychotic killer to assassinate him, Perumal, a crime branch officer, is assigned to stop him.

A group of high-ranking political officials are on a trip when their bus is hijacked by a group of terrorists headed by Charles (Lalu Alex). They demand the release of their old colleagues languishing in prison in exchange for safe release of the politicians. An ex-cop is hired to free the officials from the group of terrorists.