Teenagers Libby and Kit have found a new way to entertain themselves: by calling random strangers and tormenting them with a warning: "I saw what you did, and I know who you are." But when a man who has recently murdered his wife becomes their latest victim, the tables are quickly turned…and this wrong number may mean that their number is up!
IMDb 6.2/1019651 小时 22 分钟 
