Jonathan Corliss, a cunning Philadelphia student, murders his secret girlfriend Dorothy to avoid spoiling her relationship with her wealthy father. He then moves to New York, where he courts her identical twin sister Ellen, seemingly unaware of her suspicions surrounding Dorothy's death.

A Kiss Before Dying
As a student's secret relationship with his girlfriend reaches a tragic end, he becomes obsessed with her identical twin sister, only to uncover the dark truth about their complex and twisted connection.