The plot is scatter shot, part murder mystery, part romance, and mostly goofy shenanigans. This uneasy mix makes "Acting on Impulse" so uneven that if it weren't for some darkly humorous dialog, a great looking black 1954 Corvette, and a few decent cameo appearances, the movie would be totally forgettable. Paul Bartel plays a movie director, which is really typecasting, since he was a director. Isaac Hayes is in and out of the picture from time to time as a detective, and Mary Woronov is a plain jane hotel desk clerk. Linda Fiorentino plays a second tier actress who is wanted for murdering a producer, and she eventually hooks up with C. Thomas Howell, and Nancy Allen at a pharmaceutical convention. The film has a very claustrophobic feel, as most of the story takes place in a hotel. It is definitely watchable, but the mish-mash script is constantly dragging it down, and oh yes there is a surprise ending. - MERK