Two women both claim to be the wife of a murder victim surprise Mac and Stella at the circumstances of their relationships. Both women have been in a trinogamous marriage with the victim. Meanwhile, Danny and Lindsay investigate the murder of a young woman who is found off a dock tangled up in kelp while she is dressed as a mermaid.
Elenco: Carmine Giovinazzo , Anna Belknap , Robert Joy , A.J. Buckley , Hill Harper , Eddie Cahill , Gary Sinise , Sela Ward , Emmanuelle Vaugier , Hill Harper , Robert Joy , Sela Ward , Vanessa Ferlito .