It's
A Slight Case Of Murder (1937), based on a play co-authored by Damon Runyon. Edward G. Robinson stars as the "beer baron"
trying to go legit. I've seen it two or three times, find it very funny. Downside: it's not well directed. Had Frank Capra directed this one it might have been a classic.
BTW, it was remade fifteen years later as a musical
,
Stop, You're Killing Me! (I think I got that right), with Broderick Crawford in the Robinson role. The film was probably inspired by the hit Broadway musical
Guys and Dolls, which was running around the time it was made, adapted from several Runyon stories.