To add to the emotion of the case, Coltraine was the lover of Li Morris, the Chief Medical Examiner and a good friend of Eve and Peabody.
A humorous minor subplot revolves around Eve's performing another duty of friendship she has never tackled before: hosting a wedding shower for Louise Dimatto, who is marrying former "licensed companion" Charles Monroe.
In the middle of the shower, Eve gets a call from dispatch informing her of the death of Rod Sandy, Alex's Personal Assistant.
After she gets back, Eve requests Charlotte Mira and Cher Reo to sit in for a debrief and ends up explaining the case to all her friends which leads Mavis to point out the killer who was the victim's partner at her precinct.
Further digging reveals the killer to be the illegitimate daughter of Max Ricker, who set her up to exact his revenge on Eve and Roarke for putting him in a cage.