Nicci French is the respected writing team of husband and wife Nicci Gerrard and Sean French.
In this story, Astrid Bell is a bike messenger in London. She's on her way home when a neighbor opens her car door without looking, causing Astrid to crash into the door, injuring herself and her bike.
The woman offers to pay for the damages but Astrid is angry at the woman's carelessness. Her six housemates offer consolation but later that night the woman is beaten and robbed.
Astrid tells the police of her encounter with the woman but has nothing else to add. She returns to work and she is assigned to collect a package from a wealthy woman and finds her murdered at her residence.
The police see only one connection between the murdered victims, Astrid. Her roommates again offer various suggestions and we learn that they are having romantic relationships and pairing off together in a manner that would be imagined if Desperate Housewives moved to London.
Another murder occurs and again we have the roommates to consider when the point of view changes to the killers. It is a bit confusing and I wished I had written a scorecard to keep track of which roommate did what and who they were sleeping with.