Alice, a private investigator, infiltrates a psychiatric hospital by feigning paranoia. Her objective is to gather evidence for the case she's working on: the death of an inmate under unclear circumstances. However, the reality she will face during her confinement surpasses her expectations and casts doubt on her own sanity. An unknown and captivating world will unfold before her eyes. This is an adaptation of the novel "Torcuato Luca de Tena" of the same name.