After 'Ratboy (1986)', Sondra Locke would hone down her directorial skills with the vastly overlooked cop thriller 'Impulse'. The voluptuously headstrong Theresa Russell (who doesn't get enough recognition as it is) proves the talent she bestows, as the film asks for a vividly intriguing performance. And she provides a breakaway one as an undercover cop of the Vice squad. Not forgetting Jeff Fahey's outstandingly low-key turn in what could be seen as a breakthrough performance as an assistant district attorney. Along with Locke's moodily terse and measured direction that just takes you into that smoking film-noir ambiance; Russell and Fahey's performances are also the potent backbone to the appeal of the film. Where the film has its share of flaws comes mainly from the dramatically cluttered material, as it's story-bound rather than action-filled. It follows Russell's character as she pins perverts and drug peddlers, but soon she becomes so attached with the power play of the job that the impulsive fantasy of losing control and experiencing criminal temptation becomes overwhelming. The choice is there, and her repressed emotions are starting to crack and anxiety creeps in. Another element thrown into the mixture is the growing affection between Russell and Fahey's characters. This leads onto a complex (and where it hit's a bump is the somewhat implausible developments infesting its way within this) web of psychological, harrowing and heart-racing avenues, plus intensely raw thrills. Characters are actually well-rounded and show what makes them tick with some brooding shades showing. The technical side is professionally catered for with Michel Colombier's seductively sizzling, but at times jarring music score, sullen lighting tinges evoke presence, relaxed pacing and it's gorgeously shot with the Los Angeles backdrop painting a lasting mark. The support cast features capable turns by George Dzundza, Alan Rosenberg, Shawn Elliott and Eli Danker. A really surprisingly tight, mature and stylish thriller by Sandra Locke, but its Theresa Russell's powerfully stimulating performance that stays with you.
