Marga and Martín meet and feel attracted to each other, not realizing they'll be neighbors.

After his wife's death, César must raise four kids alone: teenage stepdaughter Ana, daughter María from his previous marriage, and twins Miguel and Cesarín from his late wife Sandra.

Tomás, an 11-year-old boy living in his own fantasy world, must use his vast monster knowledge to fight against his new English teacher: a wicked woman who is, in fact, a child-eating monster.