C.I.D.
Directed by	M. Krishnan Nair
Written by	T. N. Gopinathan Nair
Produced by	P. Subramaniam (Merryland)
Starring	Prem Nazir Miss Kumari Kottarakkara Sreedharan Nair Kumari Thankam
Cinematography	N. S. Mani
Edited by	K. D. George
Music by	Br Lakshmanan (songs) Thirunayinarkurichi (lyrics)
Production company	Neela Productions
Distributed by	Kumaraswamy & Co. (Travancore) Film Distributing Co. (Malabar & Cochin)
Release date	27 August 1955 (1955-08-27)
Running time	170 minutes
Country	India
Language	Malayalam

C.I.D. is a 1955 Indian Malayalam film made for Merryland Studio by director M. Krishnan Nair which stars Prem Nazir, Miss Kumari, Kottarakkara Sreedharan Nair and Kumari Thankam. It is generally considered as the first crime thriller movie in Malayalam.^[1]

The film was dubbed into Tamil with the same title and was released in the same year, 1955.^[2] K. Devanarayanan wrote the lyrics and dialogues.

Plot

C.I.D. Sudhakaran is assigned to investigate the murder of Mukunda Menon, a wealthy planter. He discovers who is behind the murder and in the end marries Menon's daughter Vasanthi.

Cast