During a visit to friends, Sara begins having visions and is attacked by an unearthly creature in her friend's swimming pool; she soon discovers that anyone who comes into contact with the water is in danger and she is driven to confront the mystical and malevolent creature lurking in the depths.

囿于经济危机给西班牙带来的困境，一对身无分文的年轻情侣无法“离巢”。同时两个菜鸟还要学会如何在家庭束缚下，处理好彼此的感情这一恼人问题。他们对发生关系日益绝望的时候，开始着手寻找在年轻人中受欢迎的公共性场所。然而事情并非如想象中简单，他们试图打破经济危机的枷锁的时候，关系也受到了考验。