Impulse is neither as bad nor as cheesy as other reviewers believe it to be. It's true that William Shatner wears some of the ugliest clothing of all time, but it's also true that his acting is--wait for it--actually pretty good, and not particularly over-the-top. The development of his character's psychosis is well presented in the black and white pre-credits sequence (which features H.G. Lewis regular William Kerwin), and nicely (if obviously) echoed during the film's conclusion. Shatner manages to convey his own fear and disgust with himself even while he continues to kill. The rest of the cast--including Ruth Roman--don't embarrass themselves either.
What faults the film does have are primarily the responsibility of low budget Florida director William Grefe, who consistently fails to display much talent or imagination with poorly established scenes and unimaginative set ups. Lewis Perle's score is naggingly aggressive and lets the film down at every turn. Overall, Impulse is an enjoyable low budget thriller that would be better regarded if people didn't like to obsess about the acting proclivities of a certain Captain James T. Kirk--an actor who has proven, in films ranging from 1961's The Intruder to 1999's Free Enterprise, that he actually can act.
What faults the film does have are primarily the responsibility of low budget Florida director William Grefe, who consistently fails to display much talent or imagination with poorly established scenes and unimaginative set ups. Lewis Perle's score is naggingly aggressive and lets the film down at every turn. Overall, Impulse is an enjoyable low budget thriller that would be better regarded if people didn't like to obsess about the acting proclivities of a certain Captain James T. Kirk--an actor who has proven, in films ranging from 1961's The Intruder to 1999's Free Enterprise, that he actually can act.