Three separate cases crop up in San Francisco to keep the Women's Murder Club quite busy. The first starts off on a beautiful day. A number of commuters and tourists are enjoying a nice ferry ride on the Bay. Shortly before reaching the dock, one of the riders notices a young mother who is scolding her son. Some would say she is being a bit harsh. However you would describe it, Alfred Brinkley has no patience for it. He pulls out a gun and shoots the mother, then the son, and then a number of other people. Claire and her son are on the ferry, and she does what she can to calm him down, but he ends up shooting her as well.

As you can imagine, the fact that one of her best friends is a victim in the incident, Linsdsay feels the need to get to the core of the case quickly. Little does she know it, but the murderer himself will come forward after appeals from the public for information. He quickly confesses, but the question really comes down to whether he will get off due to being insane. It will be up to Yuki, from the DA's office to try and bring the killer to justice.

Cindy is finding that home is not the sanctuary everyone wants it to be. Someone living in her building seems to having a problem with how loud other people in the building are. At first it starts with minor acts of violence, but as time progresses the assailant moves on to attack pets and people.

Lindsay is back on the street, and she and her new partner are assigned to a kidnapping case. A young girl named Madison and her nanny are pulled into a black van. The only witness believes she heard the sound of a gun shot as it was pulling away, with evidence of blood in one of the van's windows. At first, there is almost nothing for Lindsay to draw on, but it soon becomes clear that Madison is not the first victim of the kidnappers. She is just the next child in a series of kidnappings that include death and threats. Can Lindsay and her team find Maddy before she turns up dead.

As if that wasn't enough, Lindsay is also trying to sort out what she wants to do with her long distance relationship with Joe, who works for Homeland Security, which places him in Washington, DC. There is no question that she loves him, but she is finding it difficult that they have so little time together, and that time is not always when she most needs him. She is going to have to decide whether she wants to end things with him.

This is a great addition to the series. All four members of the Women's Murder Club have a role in the various cases, and the cases themselves are edgy, leaving the reader on wondering how things are going to turn out. Not everything place out as you would want it, but as usual the girls rise to the occasion and justice is ultimately served.