What makes Guilty Of Sin so much fun, lies in it's title. We wanna believe the bad guy, Johnson, who we believe is pretty much guilty from the start, the movie's title, a strong inference, so you really can't call it a thriller. Johnson has always been an underestimated or underrated actor in my opinion, who never grade of A list, but has given so many good performances. Only here as a sexy, slimy, smarmy, narcissistic, son of a bitch who is as the title refers, he's exceptionally good, while De Mornay, defending him, isn't too bad. She falls for him, of course, despite the fact she's already involved. She soon realizes, this is her downfall, and by now he's pretty much soon he's got her, making her shake and cringe. Soon people around her are getting hurt, and the game becomes more violent. I've never enjoyed watching Don Johnson more, than in this, it's cool finale making you wanna jump up and clap. Despite the movie being a tad dry, with a kind of slow moving story, the latter really doesn't affect the film, thanks to bad guy Johnson and all the effectively tense and truly scary moments he delivers, in his performance, where sinning never looked better.