在这部绑架惊悚片中,一个天生耳聋的男孩在学校离奇失踪，而后他在警局指认了绑架犯的照片。但警察没有找到决定性证据，并未逮捕嫌疑人。男孩的妈妈是业界知名律师，在目睹警察办事不力之后，无法容忍儿子的安全时时受到威胁，于是她决定用自己的方式惩罚罪犯，但事态的发展却令她始料未及……一个有能力有手段又深爱孩子的母亲，是否能成为男孩的救世主呢？
Víctor is a child who is found casually roaming by a country road. His mother, Patricia, a well-known lawyer who specializes in media trails, soon learns of her son being found. Victor is taken to hospital and his mother soon follows, where it is explained by police that Víctor is now deaf and mute, but can communicate using sign language. In the police headquarter Víctor explains that he was kidnapped by a strange man when he entered his school. The police identify a possible suspect named Charlie, a man with money troubles and an 8-months pregnant wife. Charlie is unable to explain where he was when Víctor was kidnapped. Patricia, seeing the inability of the police to arrest Charlie, contacts her former love interest and Victor's father, Raúl. Patricia solicits him to threaten Charlie in hopes of confessing. But when it's discovered that Víctor made a false identification, Patricia tries to stop Raúl, starting a chain of events, the consequences of which will be out of control.
