One night in the summer of 1981, Scott Thorson went to the home of Eddie Nash, a Los Angeles nightclub owner and drug dealer.

He and the participants in the documentary—former detectives, prosecutors and Scott Thorson, Liberace’s longtime lover, who died Aug. 16—have been living with the case for more than 40 years.

Scott Thorson, a young bisexual man raised in foster homes, is introduced to flamboyant entertainment giant Liberace and quickly finds himself in a romantic relationship with the legendary pianist.

This is Steven Soderbergh’s frequently hilarious biopic about Liberace and his 6-year relationship with the much younger Scott Thorson. It is a world of palatial kitsch, excess and small dogs ...