The Killer Is One Of 13. 1973.
A widow invites a group of people to her secluded house and believes one of them killed her husband but soon the guests begin to die.
Patty Shephard leads the way in this Spanish Giallo as the woman who seems to partially knows which one of her assortment of house guests killed her husband. We do get a decent character build up from the guests and their background and connection to the deceased but at times it does feel like it's a bit to much talky talky, but when the murders in the house start happening it does become a good mystery. Although this sort of thing has been done before, it's one i'd happily return to.
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