The Kindness of Strangers: A Novel

The mostly content living arrangement of five housemates is disrupted by the arrival of a new (to all but one) acquaintance. The plot is complex in detail and revealed piecemeal which takes skills. But none of the characters are very likable. Also, the epilogue reveals what happened to every character years after the end of the main event - content I felt was unnecessary.

OK. similar, but not as good as Agatha Christie--all the pertinent info given at the end and everything ties up perfectly.
about people after the war changes their identities and making a new life for themselves