The investigation centers on the murder of Menna Hughes, a coastal town businesswoman and amateur dramatics theatre director. John and Janie investigate the case within the context of the theatre group, with John even joining the cast of their next stage production to get closer to the truth.

John takes a role in the theatre group's next play, which leads to a cathartic journey for him. This involvement rekindles his passion for acting and helps him regain his confidence on stage, which is a significant subplot in the episode.

Janie is motivated by her desire to solve the case and earn a promotion, while also confronting her own past demons after witnessing a suspect stand up for themselves. John struggles with doubts about his acting abilities but finds renewed confidence through his participation in the play.

Key figures include Menna Hughes, the victim; Wendy, who is the main beneficiary of Menna's estate and regarded as the main suspect; Leonard, who was angry about Menna having his dog put down; Rowena and Ben, members of the theatre group who are connected to Menna’s estate and personal affairs.

The theatre setting is central to the plot, as the murder occurs within an amateur dramatics group. It provides the backdrop for the investigation and John’s return to acting. The rehearsals and stage production serve as a means for uncovering clues and exploring character dynamics, making the theatre both a physical and thematic stage for the story.