The Stranger by Harlan Coben

Lawyer Adam Price has his world turned upside down when a stranger tells him that his wife, Corinne, faked her recent pregnancy. Stunned by the news, Adam confronts Corinne who tells him that it's the truth. She then disappears, texting him that she needs some time away and asking him to take care of their two teenage boys, Thomas and Ryan. Where has Corinne gone? Has something bad possibly happened to her? The reader also learns that "the stranger" has gone to other people, revealing secrets about their family members. The puzzle that Adam tries to unravel kept me guessing until the end of the book--and kept me up late at night. The Stranger is a great read-alike for Linwood Barclay.