Dressed to Kill by Charles Alvarez

Victor Espinoza, a short, youthful LAPD patrol officer, is sent undercover as a cross-dresser to catch a serial killer. His ambition to become a detective gets snarled when, ignoring his captain’s orders, he goes it alone and establishes himself at the Velvet Glove, a Hollywood bar that caters to transvestites and drag queens. The secret nature of his assignment not only strains his long-term relationship with his girlfriend, Jannine, who wants to marry and start a family, but hot on the trail of the killer, Victor gets a little too close—and now, he’s targeted as the next victim.