**_Fun low-rent slasher schlock from the mid-80s_** After a woman is burned in a horrible tanning salon accident, her sister (Marcia Karr) opens a gym in Los Angeles where the clients start dying one-by-one. David Campbell plays the grim detective, Ted Prior a new employee at the gym and Fritz Matthews a weirdo tough guy client. “Killer Workout” (1987) is cut-rate slasher schlock focused around (big surprise) a gym in the Hollywood area. To be expected, there are a lot of shots of the women working out, mostly aerobic exercise, but don’t expect the voluptuous females in “Heavenly Bodies”…