The college student Natalie Ross goes missing and her friend and roommate Amanda Rowe accuses her ex-boyfriend Cameron McClure to the police. However nothing is proved against Cameron and Amanda's roommate Zoe decides to rent Natalie's room to share the expenses of their house. They accept the student Hayley Jones and she gets close to Amanda. When the upset Cameron threatens Amanda, Hayley defends her and they have a close relationship. Soon Cameron breaks in their house and hits Amanda; however Hayley arrives at home and hits Cameron on the head with an axe. Hayley convinces Amanda to hide the corpse, burying in the farm of her abusive father Garret Jones. Then she tries to convince Amanda to kill Garret, but Amanda refuses. Hayley kidnaps Amanda's friend Mark to force Amanda to kill her father. What will Amanda do? 标尺。 阿曼达（凯蒂·卡西迪 Katie Cassidy 饰）和娜塔莉（Leah Gibson 饰）同租一幢公寓的大学好友，二人情同手足，亲密无间。谁知某天晚上，娜塔莉外出打工一去不返，虽经多方查找依然下落不明。公寓内另一名女孩佐伊（Shannon Chan-Kent 饰）不愿继续负担多出来的房租，几番劝导之后最终迫使阿曼达同意将娜塔莉的房间租给名叫海莉（崔茜·史皮瑞达可斯 Tracy Spiridakos 饰）的女孩。有着不堪过去的海莉，与沉浸在对好友怀念之中并且时常受到昔日男友马克骚扰威胁的阿曼达同病相怜。直到某天，海莉出手杀死了殴打阿曼达马克。 两个好姐妹守护着这个血腥的秘密，携手艰难前行，她们的心也由此贴得更近……
