I chose this mystery for the book discussion group at the library. We had a very lively discussion.

Olivia Watson moves into a house in Knightsbridge, New York. One night, she sees a man appear at her door and then disappear through a wall. After she sees him three more times, she speaks to him. He responds and they discover they are living in the same house, only, while Olivia is in 2014 Stephen Blackwell is in 1934. A detective on the police force, he is currently involved in investigating the murder of the bank manager and the theft of a significant amount of money.

His investigation proceeds as his relationship with Olivia progresses to a tentative friendship.

The settings, particularly the 1934 world, are wonderfully rendered. Some of the touches are really clever. They discover that they both know some of the same people. But Stephen knows Annabel, for example, as a fourteen-year-old, while Olive knows her as an old woman. Unsettling to say the least. Fun and thought provoking. Recommended.