On the eve of its demolition, Berta visits the old theater where her grandmother used to work. She finds out that it's not completely abandoned - Mortando Malone and Big Blue Cat, her old imaginary friends, are there to help her solve an impossible case: recapture her capacity to dream.

José Luis García Pérez
as Big Blue Cat

Aura Garrido
as Berta

Olivia López Marcos
as Young Berta

Álex O'Dogherty
as Mortando Malone

Jorge Sanz
as Jefe