Impulse

A female undercover cop, overworked, exhausted and ready for a break, gets seduced one night into a short walk on the wild side, but it may prove to be her undoing. Well-directed cop thriller isn't a blockbuster, nor is it capable of really expanding its perimeters on the basis of a slight budget, but filmmaker Sondra Locke gets fine performances from her cast, particularly Theresa Russell, exuding palpable street-glamor in the lead, and handsome George Dzundza as her lieutenant. I have never been an admirer of creepy-eyed Jeff Fahey's work (he always seems hyped up for little purpose), but he isn't too distracting here. Little-seen picture is perfect late-night TV fodder; nothing overly substantial or imaginative, but tightly-wound and involving. **1/2 from ****