A cool stalker / slasher film from the good old days. Killer cast of Martin Landau, Jack Palance, & Donald Pleasence makes for a believeable and scary film centering on the esacpe of 3 nutballs from a mental hospital. The 3 terrorize the family of a Dr. and make things shitty for all involved. A few semi -gory moments highlight the story which moves along well and has a strange end. Was kinda cool to see a slasher from this year not totally focused on young people and teen slaughter. The loony bin scenes were kinda cool & would you believe Pleasence in the role of a DR.? Martin Landau is the cookiest of the bunch and hams it up wonderfully. This oldie is one not to miss if like this kinda stuff. Slasher fans don't be alone watching this.