Guadalupe Del Toro

A funny and subversively heartwarming love story about Dona Herlinda, a shrewd yet always placid mother who wishes for her son only that he live happily with Mom, his wife... and another man if need be. Her son, a sexually confused surgeon, is having a relationship with Ramon, a handsome music student. When Mom realizes that their relationship is romantic and deep, she helps things out by inviting her son's lover to stay with them, reasoning "Rodolfo has such a large bed!" (tlavideo.com)

A student boy has failed once more geometry examination and also, short time ago, he has lost his father in an accident , but with the help of magic rites he wants to evoke a superior demon and will order him to resolve all of his problems.