Kanamarayathu movie is based on a book daddy longlegs by jean Webster. The story is of an orphan girl (Shobhana ) who has an anonymous benefactor (Mammootty) who sends her to college. she communicates with him through her letters. when they meet, he recognizes her from the details in her letter but doesn't reveal himself. to make matters convenient, she is his niece's/sister's (Sabitha Anand) classmate.

Adithya Varma, his wife Subhadra and daughter Kaveri live in the same compound where Sasi and his wife Parvathy lives. Sasi and Parvathi go to the office along with Varma. Kuttan Pillai, a gossip manager, does not like their relationship. He tries to drive a wedge between Varma and Sasi families. Varma asks his advocate to look for a man for his company. Advocate recommends Jayan, son of his friend for the job. Jayan is appointed in the company. Kuttan Pillai tells Varma's wife that it was not fair for Varma to go with Sasi and Parvathi. One day Parvathi come late from the office. A quarrel takes place between her and her husband on this account.

A doctor becomes an instant heartthrob after making an appearance in a movie and soon marries a woman. But just after their marriage, the truth about his past is revealed, which leads to complications, taking the couple a step closer to divorce.

Raji is forced into prostitution to support her brother's education after their parents' death. She falls in love with Babu, who faces social ridicule after their affair becomes public.

A spoilt rich man Kuttapayi befriends a group of four college students. Kuttapayi uses them to do a lot of his dirty work. When things go awry they take refuge in Kuttapayi's remote estate; where his past catches up with him.

After being released from jail, Kaali is in search of Raja Rao, a rich businessman who is responsible for the death of his family members.

When the peaceful married life of a couple is unexpectedly disrupted by two youngsters with criminal inclination, the trials and tribulations connect the mobster lives of Thrissur by becoming a part of vengeance.

Arjun is conveniently married to his best friend Anu and their marriage turns out to be a nightmare since he is not really in love with her. When things get tough Arjun gets a second chance in life that could change his path and perspective altogether.