I think there was a group of young boys trying to peep on a naked woman. Then an older woman/witch/her mother or grandmother catches them. I think all the other boys get away, but she puts a curse on one of the boys who didn’t get away. I think the curse is something happens to him whenever he sees a naked woman or has sex or something. Then it fast-forwards to when he is a young man. He has forgotten about the curse. So he doesn’t know that something bad will happen when he starts dating. He soon discovers that he can’t have a love life because something happens to him when he starts to.