Demon Traps Students and Makes Them Decide Who Should Die

by Xachh
(Chattanooga,Tennessee, USA)

It's an old movie where this demon has a group
of students trapped in the school and won't let
them leave until they decide which person
in the group doesn't get to leave.

They all decide on themselves except for the last one boy who picks the good girl out of frustration and then shows up at school and she's back.

Please help me find this movie name.