Ana y Mateo buscan desesperadamente a su hijo que se les ha perdido, después de haberlo dejado unos minutos solo como castigo por portarse mal, en un frondoso bosque junto a la carretera. Mientras comienza a anochecer y aún con la ayuda de la policía siguen sin poder encontrar al pequeño Lucas que parece haber sido tragado por este hermoso pero amenazante bosque. El suspense por la búsqueda de su hijo y la intriga de si logrará aparecer llevará a la pareja a replantearse su amor, sus vidas y sus propios roles en la familia.


Ana and Mateo desperately search for their lost son, after leaving him for a few minutes alone as punishment for misbehaving, in a leafy forest by the road. As dusk begins and even with the help of the police they are still unable to find little Lucas who seems to have been swallowed up by this beautiful but menacing forest. The suspense over the search for her son and the intrigue of whether he will manage to appear will lead the couple to rethink their love, their lives and their own roles in the family.