Pictures Or It Didn't Happen

Sophie Hannah's unguessable thrillers have readers hooked!
'INGENIOUS! I challenge anyone to unravel this clever whodunit' ?????
'Sophie Hannah could well be our modern Christie, such a deliciously complicated plot. Her best yet!!' ?????
'This murder mystery really did blow my mind. It kept me awake at night! Absolutely brilliant' ?????
'This lived up to its press for me. I loved every page -- a truly impossible puzzle!!' ?????

Would you trust a complete stranger?

After Chloe and her daughter Freya are rescued from disaster by a man who seems too good to be true, Chloe decides she must find him again to thank him. But instead of meeting her knight in shining armour, she comes across a woman called Nadine Caspian who warns her to stay well away from him. The man is dangerous, Nadine claims, and a compulsive liar. Alarmed, Chloe asks her what she means, but Nadine will say no more.

Chloe knows that the sensible choice would be to walk away - after all, she doesn't know anything about this man. But she is too curious. What could Nadine have meant? And can Chloe find out the truth without putting herself and her daughter in danger?