Deadly Games - Elusive Killers, #1

In a race against the clock, everyone is a suspect. St. Louis has one of the highest crime rates in America, and now it's suffering from a new kind of unspeakable violence. A sadistic artist with a macabre flair is using torture and murder as inspiration. Detective Sasha Delossa and her partners in the SLCPD Homicide Unit scramble to decipher a killer's cryptic taunts when the streets run red with blood.
Combing through their usual suspects, they soon realize this killer is no ordinary unsub. This one is untraceable and just getting started. The case takes another harrowing turn when Sasha becomes the serial killer's obsession. And when he abducts her sister, she'll risk everything to stop him. But can the detectives uncover the Slasher's motive in time to catch him?