不知曾幾何時，地球突然爆發恐怖的喪尸病毒，成千上萬的人被病毒感染，隨后化作嗜血喪尸撕咬同類，正常人類的數字直線減少。帕特里克（馬修·福克斯 Matthew Fox 飾）和杰克（杰弗里·多諾萬 Jeffrey Donovan 飾）當年乘坐巴士疏散，誰知途中遭遇最慘烈的 事件，這兩個男人以及一個尚在襁褓中的小嬰兒成為唯一的幸存者。九年后，地球上人類所剩無幾，杰克以及當年的嬰兒——可愛的小女孩露（奎恩·麥克科甘 Quinn McColgan 飾）住在一個寒冷的山村，父女倆相親相愛，甜蜜溫馨。與之相對，胡子拉碴的帕特里克與他們比鄰而居，他似乎與杰克有著深深的隔膜。　　某個飄雪的夜晚，露意外在院落外目擊到久未出現的喪尸的行蹤，曾經的噩夢再度浮現……

　　Several years after a deadly struggle with her serial killer aunt, Jordan works to escape her troubled history. But when her aunt's revenge-seeking specter surfaces to join forces with a deranged convict, Jordan must return to the haunted town of Silver Falls for a final showdown with the ghosts of her past.

　　Anna is stuck: she's approaching 30, living like a hermit in her mum's garden shed and wondering why the suffragettes ever bothered. She spends her days making videos using her thumbs as actors - thumbs that bicker about things like whether Yogi Bear is a moral or existential nihilist. But Anna doesn't show these videos to anyone and no one knows what they are for. A week before her birthday her Mum serves her an ultimatum - she needs to move out of the shed, get a haircut that doesn't put her gender in question and stop dressing like a homeless teenager. Naturally, Anna tells her Mum to "back the f-off". However, when her school friend comes to visit, Anna's self-imposed isolation becomes impossible to maintain. Soon she is entangled with a troubled eight year old boy obsessed with Westerns, and the local estate agent whose awkward interpersonal skills continually undermine his attempts to seduce her.

《鋸齒狀心靈》講述的是一個女人被昏迷和奇怪的幻覺所困擾，她發現自己被困在了一系列的時間循環中，這可能與她神秘的新女友有關。