Obsession and Control

Mrs. Endicott's obsessive need to control her husband and her own fate drives her actions, including her willingness to fake a suicide attempt and her cold, calculated responses to the investigation, while Roberts's obsessive hatred of Mrs. Endicott mirrors this theme.

Mrs. Endicott's intense focus on her husband's whereabouts and her fear of Marge Myles suggest a need for control over the situation.

Valcour's meticulous instructions and the guarded room reflect a need to control every variable in the face of potential danger.

Valcour meticulously controls the narrative and the environment, directing Hollander's movements and concealing his own actions.

Madame Velasquez's controlling relationship with Marge, and her attempts to manipulate the situation, reflect themes of obsession and control.