Mutator (1989)

Plot

A dangerous creature escapes from a lab, leaving a trail of chaos and destruction in its wake. Among the staff, a former scientist turned janitor takes it upon himself to confront the monstrous threat. As he navigates a facility filled with horror, he must rely on his knowledge and courage to thwart the deadly rampage. With lives hanging in the balance, the battle between man and beast escalates, leading to a tense showdown where survival hinges on his quick thinking and determination to protect those still inside.