Model Ghost, Book 3 of The Backyard Model Mysteries:

A fashion show at a senior resort results in a dead body on the runway. 

Former fashion model Mel Tower confronts the unfashionable parts of her past in this October mystery at a senior resort in her Wisconsin hometown. During Boo Bash, a week of spooky fun that includes a Golden Bachelor-type dating competition, a designer is murdered at a charity fashion show. Mel’s cousin is accused of the crime, so she investigates to find the real killer. Like a dressmaker ripping out a hem, Mel discovers “unseamly” motives among fashionistas while solving the mystery.