This is a Robbery: The World's Biggest Art Heist This is a welcome new addition to Netflix's ever-growing catalogue of true-crime documentaries. As is usual, the producers have taken a story that any competent film-maker could have wrapped up in a satisfying hour or so, and strung it out over four-hour long episodes. And yet, the show might still hold your attention. The robbery of Boston’s Isabella Stewart Gardner Museum probably shouldn't have been as successful as it was. But, the masterstroke of robbing the museum early in the morning after the famously Irish-leaning city had celebrated a Saint Patrick's Day, and all potential witnesses were – to put it kindly – kind of unreliable, was maybe enough to propel the heist onto any list of the world's most intriguing unsolved crimes.