Four school girls with no memory of the previous day rendezvous where a dark-clad woman makes a shocking revelation.

The girls must readjust to life among the living despite haunting flashbacks to their battle with a violent, dog-like attacker; Rachel's sudden burst of supernatural strength lends credence to Lulu's claim.

The girls discover a common connection -- the close friendships they each shared with Lise.

Kate hopes friendship can help the girls deal with their borrowed lives.

Kate and Claire investigate the mansion where the girls met their untimely ends.

When the butterflies summon the girls for a night of bloodshed, Rachel tries to escape their nightmarish existence, but Kate and the others track her down after Lulu's grave warning.