A decades old baby skeleton contained in an old blue box is found buried in the backyard of a Beverly Hills home and a few days later a set of fresh baby bones and a dead woman turn up in nearby Cheviot Hills Park. Are the events connected? Is it a cult? Los Angeles Police Lieutenant Milo Sturgis and Dr. Alex Delaware, psychologist consultant to the police, look into the cases.
They discover that the Beverly Hills house may have been connected with abortions and the dead woman in the park was a nanny who had fallen off the grid months before. As the investigation proceeds additional dead and missing persons are associated with the cases.
As usual with Kellerman's mysteries Milo and Alex meet a variety of eccentric/interesting individuals as they question persons of interest. Much of the enjoyment of this series comes from spending time with the characters - watching Milo scarf down gargantuan meals and seeing Alex hang out with his girlfriend Robin and cute French bulldog Blanche.
The investigation eventually leads to a surprising, but relatively believable climax. One problem with the book is that the lives of some characters seem to undergo dramatic changes that are not credible. This is a minor quibble though and most mystery lovers would enjoy this book.