 Mariana is a beautiful and hard-working young women, but from humble origin. Her life will overturn unexpectedly, when she is forced to take the most desperate from her decisions: to hide in Sergio s house, the man of her dreams and to turn into the invader of his life, without he knows it. When Sergio s father finds out that his son is in love with her, he disinherits him and throws him out of the house. Both of them will try the power of their rising love when their precarious economic situation forces them to open the door of their house to a real and mysterious invader who after taking possession of their life, will bring up the terrible secret that hides behind Mariana s innocent appearance.