Phil Schreiber, a self-involved hedge fund manager living in New York City, escapes to the Hamptons with his wife and son at the beginning of the COVID-19 pandemic. Making an already fraught situation worse is the surprise arrival of Phil's college roommate Charlie, an exemplar of Falstaffian excess. As Charlie makes himself at home, secrets are revealed that threaten to do more harm than the virus they're all trying to avoid.