Paul Naschy, Máximo Valverde, Blanca Estrada, Ramón Centenero, José María Prada, Mirta Miller, Rosa Valenty, Renë D'Grie, María Mahor, Mario Pardo, Victoria Hernández, Goyo Peralta, Antonio Gamero, Paloma Cela, María Isabel Hidalgo
Cops and a reporter attempt to capture a mysterious killer plaguing the city.