Four recently deceased characters find themselves in Purgatory awaiting a sin cleansing so that they may enter Heaven. They have been gathered to review and relive the ONE sin which they have failed to repent while on earth, that is so heinous, it may send them straight to hell. The film is composed of four horror vignettes with a wrap around story of their spiritual guide. But nothing is what it seems as these people may be misrepresenting themselves.