Michael Nouri (of Flashdance and the original Captain America) is hotshot supercop Beck, and after an ordinary citizen goes on an outrageous crime spree, Beck is joined by serious FBI-guy Kyle MacLachlan (the year after Blue Velvet) who’s on the trail of a body-swapping alien that likes fast cars, hot girls, loud music, and doing murders. The alien’s motivations seem more human-joyride than world-endangering, so its interest in a senator is aiming for high-stakes Dead Zone/Omen III drama but I dunno. Either way, FBI Kyle turns out to be possessed by an alien hunting the rogue alien, and when he check “himself” out in a mirror it’s extremely Twin Peaks.
The first alien host is Hank Jennings, Norma’s husband in Twin Peaks, and the second host (William Boyett’s final film was Theodore Rex which has a surprisingly stacked cast) has a heart condition, to the annoyance of the alien who can’t run fast enough to carjack a convertible, so has to go to the dealer and steal one like an ordinary lunk. Then comes a stripper (Claudia Christian of Babylon 5 and Maniac Cop 2), then a dog… a cop who kills Danny Trejo… and the senator. Our heroes prevail, but Beck is fatally shot so Kyle Luzes into him. It is an 80s thriller, so there’s also a shootout in a mannequin factory, a ray gun, and a flamethrower.
The writer later hit it big with Operation Dumbo Drop, then the National Treasure movies. Director Sholder, the DP and a couple producers had just made Nightmare on Elm Street 2, and apparently they expected to make part 3 since “the third elm street venture” is their copyright company. The 1993 Hidden sequel was directed by nobody, starred nobody, recast Beck and his wife, and had a lead character named MacLachlan.