剛離婚的安妮為了令自己的生活重回正軌，不惜任何代價，她迷上了自己在健身房的新教練，可悲的是，阿曆克斯是一個精神病患者，曾多次謀殺自己的學員。
Annie, recently divorced, is doing everything she can to get her life back on track, is inspired and excited about her new trainer at the gym who, sadly, is psychotic and has been murdering her trainees.
