Christmas is approaching and Arden Hayes is in dire need of a date if only to convince her concerned family that she's moved on from her failed marriage.
Rosie Gladwell is lonely in a city that isn't hers, an ocean away from home, and every date that she's been on ends in disaster. When she comes across an advertisement for someone willing to act as a Christmas date on new social media and dating app, Don't Be a Stranger, she responds in the hopes that she won't have to spend Christmas alone — even if it means spending the night pretending to be in a relationship with a stranger. However, as Rosie and Arden get to know one another, they seem to find an instant, undeniable connection. Is it as real as it feels, or just another act?