Pay me back within three days or you'll die

Nora abides by a terrifying rule: anyone who borrows money from her will die a bizarre death if they fail to repay within three days. This grim fate has befallen several people before, so she swears never to lend again. Yet her roommate blackmails her with private photos to force a transfer, brazenly defying the deadly curse and refusing to pay up. Soon a corpse turns up in the campus lake, making Nora the prime suspect. As interrogation unfolds, suspicious details pile up. Behind the seemingly