Professor Hermes conducts a research on fear, for which he passes contract with a patient to live a supposedly empty mansion. He's counting on his assistant Chico Mota to play a phantom, but soon comes about that there are phantoms (plural) in there.
António Silva
as Professor Hermes
Francisco Ribeiro
as Gatuno /Robber
Henrique Santana
as Chico Mota
Henrique Viana
as Alvarinho
Eugénio Salvador
as Faisca /Spark / Police
Carmen Mendes
as Amelia / Hermes maid
Humberto Madeira
as Neto / Police Officer
Rolando Alves
as Procurador / Proxy
Irene Cruz
as Necas
Maria Helena Matos
as Tia / Aunt
Henrique Santos
as Dr. Branco
