Ashok Mehra (Rajesh Khanna) an industrialist, loses his wife Purnima (Rekha) during the birth of his only daughter Mini. He hires Radha (Rekha in a double role) as a governess to look after the upbringing of his daughter. Ashok is clueless about Radha’s marriage with Raj Bedi (Raj Babbar) and he falls in love with her as she bears resemblance to his deceased wife. On the other hand Raj suspects his wife of having an affair with Ashok. What will happen when Ashok Mehra finds out that Radha is already married?