Murder at the Grand Gatsby Speakeasy

It's the height of Prohibition in  1920s Chicago, and a mob war's brewing between the South Side Gangsters  and the Northern Chicago Mob Outfit. The two ruthless crime leaders, Hal  Sapone and Beanie O'Dannon, have finally agreed on bootlegging  practices in Chicago and have decided to pull together resources for a  collaborative effort with criminal endeavors. On the surface, this strategy is similar to bailing out a sinking ship with tin cups.

Recently, gangsters from the north and south have been spotted together  at various speakeasies throughout Chicago, but the tension in the air  is always thick enough to be cut with a knife. However, this newfound  relationship between the opposing mob bosses has served, thus far, to  inhibit gratuitous bloodshed as in the past. Part of the success of this  truce is that both crime bosses have found new dames, thereby  intertwining more mutual relationships between the two factions. 

The  two gangs have set an official date to meet at Hal Sapone's Grand  Gatsby Speakeasy to resolve all remaining differences. Will these two  underground organizations resolve their disputes, or will a massive  melee rekindle the fatal flames between them? This is where your story begins.