Sunset Key — Blake Crouch

Letty Dobesh is coming off a bender and hasn't had a job in months when she gets a very enticing offer. John Fitch, the ultrawealthy CEO of a major energy company, has recently been convicted of securities fraud. In four days he must report to a federal prison, where he will almost certainly spend the rest of his life. Fitch wants a female companion for his last night of freedom.
   But Letty is no high-priced call girl, and this gig isn't about sex. The plan is to steal an original Van Gogh from Fitch's island retreat. A petty thief by trade, Letty has never had a shot at this kind of payout. It's certainly dangerous, but the money will set her up for life and allow her to regain custody of her young son. Besides, it's stealing from a very bad guy.
   If all goes well, she'll be on Easy Street…but in Letty's life, all seldom goes well.