柏林墙倒塌后，一名前/间/谍/杀/手/获释，并对合谋背叛她的人展开疯狂报复。

　　Leonel grows up in the United States, believing that Roberto is his biological father, and although he is unsure of his origins, and doesn't speak Spanish, he constantly has nightmares involving the border with Mexico, and a woman he cannot remember. But he continues on and doesn't ask himself many questions. His life is good, he has an excellent relationship with his parents, a beautiful girlfriend, lots of friends and a more than promising future as a boxer. What he doesn't know is that all this is about to be radically changed by a betrayal. On the day of a very important fight, he gets arrested and deported to Matamoros as an undocumented visitor, never given the chance to prove that he's actually an American citizen. Fate will take him to an eclectic neighborhood in Mexico City where he will have to confront his beliefs, survive, rediscover his origins, unravel mysteries, break prejudices, learn a new language, adapt to Mexican culture, make new friends and find true love, without neglecting his boxing dream and the urge to return to what he considers his country.

　　被过去困扰的年轻女子加入一位神秘教授和一群天赋异禀的学生，一起调查灵异现象，对抗恶魔