This mid-80s slasher film is a cheerfully inexpensive production. Following a tragic accident involving a woman burned at a tanning salon, her sister (Marcia Karr) establishes a gym in Los Angeles, where the clientele begins to meet untimely ends. David Campbell portrays Detective Ted Prior, while Fritz Matthews appears as an odd and imposing client, and Ted Prior is a new employee. “Killer Workout” (1987) cen…