A group of American tourists in Europe begin to fall victim to a red-gloved killer who cuts out his victim's left eye. Of course the tourists continue their trip (even though more gruesome slayings are occurring around them), it's a Lenzi giallo after all so who needs logic or common sense, and eventually the killer is discovered…or is he really the killer? Throw out all logic and just sit back for a nice trip on the Lenzi roller coaster.