Paxton and Linda are a disgruntled married couple living in London amid the COVID-19 pandemic lockdown. Paxton is able to get only jobs as a delivery truck driver due to an assault arrest 10 years prior, and is upset how his life has turned out.

Due to stores being shut down there are a limited amount of drivers available for high-value deliveries, so Paxton’s boss reaches out and asks him to make runs under a false identity for him. Linda, who is a CEO at a fashion company, is tasked with clearing out inventory at a nearby Harrods department store. The pair soon realize their delivery schedules at the store overlap, and Paxton would not get past the security checkpoint Linda has set up.

Linda discloses that there is a £3 million diamond in the vault at Harrods that has been sold to an anonymous buyer, and the store keeps a duplicate on-location. She and Paxton agree to take the real diamond for themselves and send the fake one to the buyer in New York City, splitting the sale between themselves and the National Health Service.

Upon making it to the store, Linda and Paxton retrieve the diamond and swap it out with the fake. However they are confronted by Donald, a former co-worker of Linda’s whom she had fired earlier in the week, who called the police after learning of Paxton’s fake identity. She reveals their plan to him, and he agrees to lie for them.

Paxton and Linda, who originally planned to go their separate ways, decide to reevaluate their relationship after the COVID lockdown is extended by another two weeks.