男主人公乔·赛佛(蒂姆·艾伦 Tim Allen饰)是个中规中矩的中年男人,他像所有失败的小人物一样,做梦都想成为一名“大人物”。他一直工作在明尼苏达州的一家制药公司,感叹怀才不遇,得不到应得的赏识。乔的老板本来许诺给他晋升的机会,最后却食言了。而且他的个人生活更是一团糟,他跟妻子凯丽(凯莉·林奇 Kelly Lynch饰)最后还是以离婚收场。本来这不好不坏的工作和浑浑噩噩的生活,如一汪死水般平静。直到他的同事马克(帕特里克·沃伯顿 Patrick Warburton饰)霸占了他心爱的私人泊车位,还在他早熟的女儿面前羞辱乔时,他的怒火终于被点燃了。忍无可忍的乔,决心改头换面,跟马克“决一死战”。
乔是否能像所有人证明:他现在是个“大人物”?而这样的改变,到底好坏与否呢?
Big Baby tells the story of Adam Lewis, a successful horror screenwriter struggling for inspiration for his latest script. After a graphic and realistic nightmare of a hulking man dressed in a baby mask and onesie who axe murders his girlfriend Kate in the middle of the night, Adam gets the inspiration he needs for his new screenplay. Excited about the direction his story is taking, he starts losing himself in his script. Things are better than ever for Adam and Kate until “Big Baby” starts appearing in real life and tormenting and killing victims fueled by his own revenge. Characters from Adam’s script begin to pay him visits pleading for their lives, and he quickly realizes he holds their fate in his hands. Power and fear completely consume Adam until his girlfriend Kate is terrified of the man she once loved.