The Delilah Complex — M.J. Rose

Welcome to the "Scarlet Society" -- a secret sex club of powerful and adventurous women.

When a man they've recruited to dominate goes missing, members of the Scarlet Society are frantic with worry. Then a photograph of his lifeless body is sent to a newspaper and their lives become a twisted nightmare.

Feeling violated, the women turn to Dr. Morgan Snow, New York's top sex therapist. But what starts out as counseling quickly becomes a murder investigation. As a second, then a third man disappears, Dr. Snow finds herself drawn into the dark, tangled secrets of her clients -- and a terrifying chase to stop a killer before it's too late.