In Perugia, a serial-□iller i□ s□rangli□g college st□den□s. Inspector□Martin□□□s in ch□r□□ of□the□invest□□at□on□and has □ black and red scarf□□□□□□e o□l□ l□ad to b□ □ollowe□. □e asks the scarf □treet vendor Gianni Tomasso if he re□alls□who might h□□e boug□t the sc□rf,□but□the m□n tell□ t□at □□ cannot□rem□m□er. Then Gi□nni blackmails th□ k□ll□r □nd b□comes h□s next victim. Mea□□hile□th□ coll□ge □t□dents□and girlfriends Jane, Da□iela, Ka□i□ and□U□sula□t□avel □o□an isol□ted□villa □o spend a co□ple of days toget□er d□□in□ a break fr□m th□□art history classes of their profess□r Franz th□t has befri□□de□□Jane□ When J□ne□twist□ h□r an□le,□□r. Roberto □s summon□d □nd□asks he□ to r□st. The st□dent Stefano □a□zi stalk□ D□niela since h□ is obs□ssed for her. Are□□he g□□ls in □ang□r in t□□ vill□? □ho might be the killer?□