Yakeen is an Indian film directed by Brij Sadanah released in 1969.

The movie was a major success at the box office[1] reinforcing Dharmendra's star status in 1969.

He is injured following instructions of Dr. Sharma in a secret experiment and granted leave.

Garson uses contact lenses and gets a throat operation to portray Rajesh's voice.

Rajesh's dog and cook realize what has happened, so Garson kills them to avoid their exposing him.

Will Rajesh manage to escape and make it back to India to expose and kill Garson?