During a jail riot instigated by convict Jaggu (Joginder), the Jailer, Arun Mehra's (Dev Anand) life is threatened and another convict, Dinesh (Satish Kaul), risks his life to save Arun. Arun and his mother, Mrs. Mehra (Sulochana) find out that Dinesh is on death-row for killing noted Professor Asho...