Killer Workout (1987)

In "Killer Workout," a series of brutal murders occur at a struggling gym, where a mysterious killer wearing a safety-pin-covered jumpsuit stalks and eliminates gym members with various exercise equipment. As the body count rises, a group of employees and survivors must race against time to uncover the identity of the killer before more lives are lost. The film blends elements of slasher horror with a fitness-themed backdrop, creating a unique and suspenseful atmosphere.