Believe Me by JP Delaney

Claire Wright is desperate. A British drama student in New York without a green card, she takes the only job she can get: working for a firm of divorce lawyers, posing as an easy pickup in hotel bars to entrap straying husbands. But then the game changes. 
 
When one of her targets becomes the suspect in a murder investigation, the police ask Claire to use her acting chops to lure him into a confession. From the start, she questions the part she’s being asked to play: Is Patrick Fogler a killer? Or is there more to this setup than she’s being told?
 
Claire will soon realize she is playing the deadliest role of her life.