HBO made-for-TV movies are usually based on actual historical events, the drama centered on a famous personality at a critical time in their careers. "Sugartime" is no exception, dramatizing the romance between mobster Sam Giancana, and singer Phyllis McGuire (one the three McGuire Sisters). Set in the early 1960s within memory-range of most American baby-boomers, and dealing with organized crime and the music industry, this should have been slow-pitch for HBO. But surprisingly they whiffed it, and pretty badly at that.
The movie is as flat as a pancake. Here's a man, as loathsome as his profession may be, he's at the top of it. And he's about to throw it all away (and maybe his life) for love. You might suppose there'd be some drama to this. Nope.
The movie is also sunk by the acting. The actors seem to be sleepwalking. The success of the whole endeavor seems to rest solely on 1960 Cadillacs, tacky gangster clothing, big hair, and countless renditions of the McGuire Sisters singing "Sugar in the morning, sugar in the evening...". Give this a pass.