An accountant, who never quite grew out of his awkward teenage years, finds himself with a dating coach - she happens to be his high school crush as well. Thanks to his coach, he gets a pretty woman he has his sights on for some time, but realizes they are incompatible. Meanwhile, his dating lessons with his teenage crush reawaken old feelings. Not realizing the feelings are mutual, he finds himself unable to act on them due to his fear of being rejected by the one he truly loves.

On a dark Christmas Eve in a small town, the lone Sheriffs on the night shift encounter a mysterious man who goes by the name of Mr. Nobody. As the night progresses, the Sheriffs discover that this isn't just a nobody, but a vengeful killer whose past threatens to haunt them all.