"When Bonnie Graham arrives at her boyfriend's apartment in London, she is horrified to discover a dead body in a pool of blood on the floor. But she doesn't call the police. Bonnie hides the corpse and then carefully wipes away any evidence she was ever there. Bonnie is a music teacher who spent a long, hot summer in London rehearsing with a band to play at a friend's wedding. It was supposed to be fun, but the band members find the complicated knots...

Astrid is on her way home one day when her neighbor accidentally knocks her off her bike. The next day, she learns that the same neighbor was beaten to death only hours after the accident. Two weeks later there's another brutal murder-- and she realizes there is a killer in the household.