Fresh out of jail, ex-con Don (Shea Whigham) goes to gangster Armen (Glenn Fleshler) to get the money he owes, but instead he is given a last assignment: to look after Phyllis (Carrie Coon). Don attempts to complete the task but discovers he is unable to pull the trigger.

Instead, the pair of misfit oddballs set off on a road trip together, as their lives and standing with Armen become entangled. Phyllis soon reveals that she has designs of her own and proposes a little tag team action to Don: combine forces with the aim to steal money – a lot of money – from the people who want her dead. Don must decide whether his allegiance lies with Armen, or with the wily, charismatic woman he was supposed to kill.