The Bird With The Crystal Plumage (1970) follows a man who witnessed a crime and was dedicated to find the serial killer before leaving Italy.
Two Evil Eyes (1990) is a Romero/Argento anthology consisting of two tales: The Facts in the Case of Mr. Valdemar and The Black Cat.
Trauma (1993) is about a girl who suffers from anorexia and meets a man who helps her find the serial killer who decapitated hospital staff.
Suspiria (1977) follows aspiring dancer, Suzy Bannon who is invited to attend a prestigious ballet school in Germany, but strange events soon start to occur
Wax Mask (1997) follows a young girl named Sonia who becomes an assistant at a wax museum but starts noticing strange things about the life-like statues.