Sarah Purcell, an employee at a fertility clinic, is murdered, and frozen embryos have been poured down the sink. As Briscoe and Curtis investigate, clues lead to a dead man's first wife, Arlene Galvin, who was trying to prevent second wife Coral Galvin from using embryos frozen during Arlene's marriage to the late Mr. Galvin. If Coral were to do so, this would entitle her to a portion of Mr. Galvin's estate. The frozen embryos at Sarah Purcell's crime scene had been destroyed deliberately. Arlene believed that if Coral got pregnant with those embryos (biologically Arlene's) she would be primarily interested in the money coming to her rather than the children. She arranged for her driver to destroy the embryos, and Sarah came in, so he killed her. In the end, Arlene will be going to jail for 5-10 years. As for Arlene's embryos, Coral will not be allowed to use them.
!!Tropes present in this episode

* AccidentalMurder: Sarah Purcell was not the intended target; the embryos were.
* TheFundamentalist: This aspect of Curtis's personality comes out when Van Buren mentions that her sister had been unable to have children. He responds with "Well, maybe she wasn't meant to have a baby," to her disbelief. Later, he says he would not agree to use stem cells to cure his wife's MS.