Julieta is a young child psychologist hired by millionaire Eugenio Ruvalcaba, to work with his only daughter, Sylvia, who has severe emotional problems, while staying in their isolated island mansion. Once there, she finds out there's much more to Sylvia's imaginary friend than what everybody knows... and the results can be horrifying... Remake of Carlos Enrique Taboada's classic film from 1969.

Based on the novel by Carlos Trejo - which is supposedly based on true events -, the film retells the story of a group of friends that played the Ouija one night together and started to die one by one in mysterious ways. The only survivor was the real-life author, Carlos Trejo.

After the dead of his mother, Daniel is put under the care of his aunt Elizabeth, a foreign woman with a severe character, who subjects the child to multiple abuses and psychological torture.

Magdalena is fifteen, but unlike many girls her age, her life is apathetic and somber, due to the abuse she receives from her father, a hopeless alcoholic, and her strange passion for Carlos, a neighborhood thug. A series of complex characters parade through Magdalena's life looking for themselves, such as Gabriel, the homosexual brother, and Huker, a violent judicial policeman who has an important secret. A portrait of the emotional depths of the strange and terrible Mexico City.

Valeria and Pablo, her husband, own an important hotel chain, which she inherited and he manages. Valeria knows that she suffers from chronic insomnia but has managed to control it and live a normal life.