Advocate Rajasekharan and his wife Sumathy have remained separate for unknown reasons. Their daughter Vandana has been staying with Sumathi and she has never seen her father as her mother Sumathy has never revealed details of her father except that his name is Rajasekharan. Vandana has an affair with her trainer Balu.

Leelamma's wedding is thrown in jeopardy after her father loses the money he got after selling off his land. Paulose, an unemployed young man, finds the money and uses it for his own good.

Thampi and Menon decide to strengthen their relations. Thampi decides to marry Madanika and Menon decides to marry Prasanna. Ayyappan is shocked by the marriage plan attempts suicide. Prasanna sympathises with the desperate lover and marries Ayyappan against the wishes of her brother.

Kaalachakram translated in English is 'the cycle of time'.

Madhavan, an eligible bachelor, is very protective of his five sisters. However, things take an ugly turn for Madhavan when his sisters turn against him and fail to understand his love for them.

Santha is a cheerful girl who is working in a lodge as a sweeper. She is well-liked by everyone in the lodge. Dinesh is in love with her. But one day Santha is found dead in the nearby well, and an investigation ensues.