A series of random suicides in Rome, Italy are attributed to a heatwave, but a young pathologist named Simona—who is working on a thesis about murders disguised as suicides—suspects otherwise. When a young girl associated with Simona's playboy father ends up dead in another apparent suicide, Simona teams up with the girl's priest brother to prove she was murdered and track down the unknown serial killer.

Mimsy Farmer
as Simona Sanna

Barry Primus
as Father Paul Lenox

Ray Lovelock
as Riccardo

Carlo Cataneo
as Lello Sanna

Angela Goodwin
as Danielle

Gaby Wagner
as Betty Lenox

Massimo Serato
as Gianni Sanna

Ernesto Colli
as Ivo

Leonardo Severini
as Caretaker

Eleonora Morana
as Eleonora