How about 'Glengarry Glenn Ross'?
Combined, as it happens, with an 'Ocean's Eleven' style heist.
Set Up:
PCs are members of a powerful big-city Thieves' Guild, and make up a multi-talented 'special projects' team.
Times are tough, though... The local constabulary is turning up the heat. A new, very nasty, rival organization is setting up shop. The much respected and beloved Guildmaster has, er, retired... The new Guildmaster considers himself a 'visionary', and wants to 'trim the fat'.
Gonna have a little contest: Three teams will each be given a more or less equivalent (and hideously impregnable) target. The team that accomplishes the most succesful heist (lowest profile, most loot etc.) wins 'First Prize'.
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"First Prize? Why, that would be promotions all around, a big heap o' wealth, key to the executive washroom... The good stuff."
"Anybody wanna hear about second prize? Second prize is a masterwork set of thieves tools. Personally monogrammed..."
"Third Prize: The, er, 'third-place' team will be left for the constabulary - trussed up, geased, and accompanied with sufficiently damning evidence to ensure rapid conviction and grotesque execution. Always good to throw the coppers the occasional bone..."
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The fun bit is that there are two teams of NPCs attempting to sabotage the PC's efforts, political unrest within the guild itself, and direct opposition by the 'target' and law enforcement. The new 'rivals' are a wild card that can be tossed in if things are going too easily.
The heist itself requires a number of set up heists to accomplish, making for a series of linked adventures that take place over time, and that require a variety of skills to overcome - investigation, stealth, violence, magic, diplomacy etc.
Never got to run the durn thing, though. When given the choice, the players opted to play 'heroes' - not scoundrels. Wimps... Ran a much more traditional campaign instead. (Sigh)
Amal