The divorced young woman played by Jennifer Lopez has a spark with the next-door neighbor, young student Noah ("Dancing out of my Life" actor Ryan Guzman), and life goes down sharply. J Lo plays a teacher whose husband is a playboy. Shortly after the divorce, Noah, a handsome young man, moved in next door. He had a good relationship with his son. He went to her class. He said she was beautiful. So they get closer and closer, and after a night of Dongfeng, J Lo wants to break up the relationship, but Noah becomes a dangerous, perverted stalker who wants to ruin her life, her job, her everything.