C.I.D. (1956)

A newspaper editor Shrivastav gets life threatening calls when he tries to expose a powerful person he intern informs Inspector Shekhar.But before Shekhar reaches office of the editor he gets killed he notices a suspect outside his office and tries to trace in car of Rekha who feels he is a thief.Master a pic pocket-er who has seen the murder identifies a person called Sher Singh who was one of the gang members.Shekhar finds that Rekha is daughter of chief police and they clear misunderstandings between them and fall in love.But Shekhar starts receiving calls from a mysterious women called Kamini working for mastermind behind the murder asking him to stay away from the case.When the mastermind feels Shekhar is near to crack the case he gets Sher Singh killed in the custody and blame goes on Shekhar for custodial death where Shekhar elopes from jail to prove himself innocent.