A group of 10 true crime obsessives are invited to the opening weekend of the newly renovated Cold River Motel, the site of a 30-year-old unsolved satanic mass murder. History repeats itself when the guests get stranded and start getting knocked off one by one during a murder spree that grows exponentially more gruesome than the original with each kill.

Day（小面包饰）和Night（Dew饰）分别出生在闰日（2.29）的正午和午夜，他们是被诅咒之人，每四年一次的闰日不仅标志着自己的诞生，也预示着所爱之人的死亡。

While recovering from a severe injury, Wisting receives an anonymous letter. The cryptic content leads Wisting to suspect a possible injustice in an old murder case where a 17-year-old girl was killed, and her ex-boyfriend was convicted

　　1846 年的伦敦，事业有成的理发师斯威尼・托德多年来一直被父母惨死于一位残酷法官之手的阴影所笼罩。在一个决定命运的夜晚，他与当地面包师洛维特夫人相遇——这位女士同样曾遭受同一名法官及其同伙的不公对待。为终结他们的这种恶行，托德和洛维特密谋达成一项协议，而洛维特则主导以最令人毛骨悚然的方式展开血腥复仇。

十个人去旅行，然而他们却误打误撞来到了一个荒无人烟的山上。由于缺少返程的汽油，他们不得不到这个荒凉的山上和漆黑的老宅里探险。