Il rosso segno della follia (Hatchet for the Honeymoon, 1970)

"My name is John Harrington. I'm thirty years old. I am a paranoiac. Paranoiac... an enchanting word. So civilised and full of possibilities. The fact is, I am completely mad - the realisation of which annoyed me at first, but is now amusing to me. Quite amusing. Nobody suspects that I am a madman; a dangerous murderer."