Business is slow for Terry Leather, a London car dealer, married with children. He's an artful dodger, so Martine, a former model with a thing for him, brings him her scheme: a bank's alarm is off for a couple weeks, so let's tunnel into the vault. He assembles a team, not realizing her real goal is a safe-deposit box with compromising photos of a royal: she needs the photos to trade for avoiding a jail sentence - and M-5, or is it M-6, is pulling the strings two steps removed. A Trinidadian thug, a high-end bordello owner, and a pornographer also have things stored in the vault, so the break-in threatens many a powerful personage. Is there any way these amateurs can pull it off?