The film is rated 18 by the BBFC for Very Strong Language, Strong Bloody Violence, Strong Sex and Sex References.
Ex-con and expert safe-cracker Gary "Gal" Dove has served his time behind bars and blissfully retired to a Spanish villa with his beloved wife Deedee. He also has the company of longtime friend Aitch and his wife Jackie. Their idyll is shattered by the arrival of an old criminal associate, the angry and unstable Don Logan.
Don is intent on enlisting Gal in a bank heist back in London. As Gal meekly but stubbornly refuses Don's many requests to join the heist, Don becomes enraged by Gal's happiness and feels that the group has abandoned him. After revealing a lingering infatuation with Jackie, he makes several unwelcome attempts at reconnecting with her. As the confrontations between Don and Gal escalate, Don grows violent. He hurls torrents of abuse at the group while at the same time spitefully painting himself as a victim of their infidelity. After finally storming away in a rage, Don is kicked off his plane and returns to Gal's home with the intention of murdering him. Instead, Deedee surprises him with a shotgun. The entire group combines their efforts, first beating and shooting him, and finally crushing his skull.
With Don dead, Gal is forced to return to London to perform the job as if nothing has happened. Teddy Bass, a powerful crimelord, has organised the heist after learning about the bank from Harry, a banker who had sex with him at an orgy. Gal feigns ignorance over Don's whereabouts, but Teddy is immediately suspicious. Gal now fears both getting arrested by the police and being murdered by Teddy. Since Don's arrival, Gal's anxiety has manifested in strange dreams where he is menaced by a humanoid rabbit, which echoes a disastrous hunting trip earlier in the film.
During the heist, Teddy's gangsters use surface-supplied diving gear and drill into Harry's bank vault from a pool in a neighboring bath house. The water from the pool floods the vault and shorts its security system. While helping to empty the vault's safe deposit boxes, Gal secretly pockets a pair of large diamond earrings. After the job is successfully completed, Teddy forces Gal to accompany him to kill Harry. Though Teddy has realized the truth about Don's murder, he does not care enough to retaliate by killing Gal. Instead, he forces Gal to forfeit his share of the loot and banishes him from London.
Gal returns safely home and his paradise is restored. Deedee wears the diamond earrings that Gal stole, and it is revealed that Don is buried under the double-heart insignia at the bottom of their pool, which had been damaged by a falling boulder just prior to Don's arrival.
The film has received generally favorable reviews including critical acclaim for its performances and characterisation. As of February 4, 2008, the film has received an aggregate rating of 86% on Rotten Tomatoes, deemed Fresh by the website. Another popular aggregate review website, Metacritic, has given it a rating of 79% as of February 4, 2008, a rating which classifies the film as receiving Generally favorable reviews by the website's rating standards. It received high praise from writers at the San Francisco Chronicle, Entertainment Weekly, Slate, Rolling Stone and the Los Angeles Times, but was panned by Stephen Hunter of Washington Post who described some of the film's moments as "Ben Kingsley spraying saliva-lubricated variants of the F-word into the atmosphere like anti-aircraft fire for 10 solid minutes. It was also described as "often enjoyable" but "massively uneven" by Variety.