Tallulah and Constance arrive at a haunted mansion where a Hollywood movie is being filmed.  They're to investigate a murder that doesn't have a dead body.

A Pretty Ugly Tale About a Pretty Little Number, Chapter Two

“Pink Noir” is a crime drama set in the 1930s starring Hollywood legend Tallulah Bankhead, who’s caught in a deadly scandal with another man’s wife and gets thrown out of the Hollywood cinema machine.  With no other recourse, Tallulah turns to detective work and thus stumbles ass over apple cart into L.A.’s crime scene of prostitution, illegal gambling, kidnapping, and murder.  So Tallulah, a woman who once slept with both Gary Cooper and Greta Garbo, now has to rub elbows with the seediest characters in town.