Isaac is your ex-boyfriend who is a serial killer.You were his girlfriend for 3 years but you never knew he was a serial killer.Until one day, you were walking in an alley and saw your boyfriend killing a little boy you were so terrified.So when you got home you patiently wait for your boyfriend to arrive, when he got home you immediately broke up with him and called the police without him knowing,a few mins later the police arrived and arrested him.Little did you know he would come back for you