Danny movie is all about Daniel Thompson (Mammootty) who looses his parents at a very young age and he strives hard to make a living. Danny’s best friend Freddy (Siddique) helps him to open a small cycle repair shop, and the priest of the local church gives him a saxophone, which later becomes an inseparable part of Danny. Freddy finds a girl Clara for Danny and thus they get married. But the marriage is short lived as one day Clara elopes with her lover taking Danny’s small daughter. Danny finds solace in his saxophone and with Freddy he goes to a near by village for a programme. They meet a rich landlord who forces Danny to marry his only daughter and lecturer Margaret (Vani Viswanath) who is pregnant. Freddy advices Danny to get married to Maggi and get settled in life. Margaret accepts Danny for the sake of her child, and is forced to tolerate him as her father leaves all the wealth in Danny’s name. Maggi can never accept him, as he is illiterate and not polished.
Years pass by and Margaret and Danny live with their son (Vijayaraghavan) and his wife (Sona Nair). One day Danny gets a letter from Clara that their daughter is getting married in Bangalore, but Maggi does not let Danny meet them. The family finds Danny and his saxophone irritating and they shift him to a sanatorium for convenience. He is happy there in the company of the doctor (Ratheesh) and the other inmates. One day another lady (Mallika Sarabhai) is brought there by her children and in no time Danny strikes a rapport with her. They share their miseries and become friends, much to the dislike of their relatives. But the society including Danny’s daughter misunderstands their relationship and they are left high and dry.