Winter by Maneesh Sharma

Winter is a predator with an otherworldly talent for bending women to his desires and stealing objects priceless in both their imagination and worth. Alexander is a scientist and owner of a Chicago art gallery who witnesses the power of Winter’s lethal charm at work. Preoccupied with finding Winter and understanding who and what he is, Alexander searches him out. But every step he takes in following Winter further tangles him in a web of deceit and conflict.