四手联弹

儿时的杰西卡和苏菲亲眼目睹了父母惨死在他人手下。20年后，杰西卡不幸意外身故，而苏菲一方面为姐姐的不幸感到悲伤，但另一方面在长期忍受杰西卡病态偏执之后，她又希望自己能从此过上正常的生活。然而此后她却频繁地昏倒并暂时失忆，她渐渐意识到有另外一个人控制着她的精神和生活。After Sophie and Jessica had witnessed a brutal crime when they were kids, Jessica promised her younger sister Sophie: "I will always protect you!" Growing older, this promise became an obsession. Now, Jessica (28) is suffering from paranoia and sees threats to her and her sister everywhere. But Sophie (26) wants to live a normal life without fear, without her sister. She wants to become a pianist and wants to fall in love. When the perpetrators are released of prison after 20 years, Jessica is shocked and wants to confront them. But an accident changes everything. Jessica's promise to always protect her little sister turns into an existential nightmare.