A young woman and her drug addict boyfriend plot to drive the woman's stepmother insane with LSD in a plot to secure an inheritance.
Lana Turner
as Adriana Roman
George Chakiris
as Johnny Allen
Karin Mossberg
as Lisa Winthrop
Dan O'Herlihy
as Charles Winthrop
Richard Egan
as Frederick Lansdale
Pamela Rodgers
as Bibi
Carlos East
as Lalo
Regina Torné
as Queen Bee
Pedro Galván
as University Dean
Víctor Junco
as Delacroix
Augusto Benedico
as Dr. Lorenz
Norma Herrera
as Stella
