Motif spotting #2

Gialli with killer priests or fake priests:

Seven Deaths in the Cat's Eye
Don't Torture a Duckling
The Seven Blood-Stained Orchids
7 Hyden Park
Who Saw Her Die?

And what others?

Motif spotting #1

Expect a lot of these posts over the next few days as I lazily test your knowledge rather than trawl through the archives myself ;-)

Which gialli can you think of featuring killers who have either not been cured via psychoanalytic / psychiatric interventions or who have suffered relapses?

For example: The Bird with the Crystal Plumage, Four Flies on Grey Velvet, The Eye in the Labyrinth, Eyeball