Dead Before Dawn (2012) on Netflix

Plot summary

Casper Galloway has been frightened of danger since an accident at the Occult Barn killed his father. The shop belongs to his grandfather, Horus, who leaves Casper in charge while he collects a lifetime achievement award, warning him to keep everyone well away from an urn on a high shelf. Inside it, Horus says, Casper's great-grandfather Gilbert Galloway sealed a malevolent spirit that will curse whoever releases it. Casper's crush, Charlotte Baker, arrives with friends, and he shows off by taking down the urn, which he drops. The others laugh and, treating the warning as nonsense, invent their own curse: after ten at night, anyone they make eye contact with will kill themselves and return as a zemon. They have until morning to undo it.