In□□erugia, a serial-killer is str□□□lin□ college □tude□ts.□In□pe□to□ Martino is in□charge of □he in□estig□tion a□d has □□black and red □carf □s the onl□□le□d t□ be follow□d.□He asks the scarf str□□t ve□dor Gianni Tomasso□if he recalls who migh□□ha□e□b□ught t□□ scarf, bu□ t□e man tel□s that he cannot □□m□mber. Then Gi□nn□ blackmails□th□□k□ll□r and becomes his n□xt v□□tim.□Meanwhile the c□l□ege students□and g□□lfr□en□s□Jane, Daniela,□Ka□ia □nd Ursula travel to an isola□ed villa□to□spend a c□uple □f days □□□ethe□ dur□n□ a br□a□□from th□ art histo□y classes o□□their pro□essor F□anz that h□s befriended Jane. When Jan□ □wi□□s□he□ ankle,□Dr□□□ober□o is sum□oned □□d □sks □er to res□. The □tudent St□fano Vanzi st□lks □□niela □□nce he is obses□ed □□r □e□. Are □he□g□rls□□n□□anger in the □i□la?□Who might b□ □he k□□le□?