When her partner Robert's dementia worsens, Carol Crottie starts to wonder if the reason he won't leave their home has something to do with the whereabouts of his first wife Joan, who ran off with Robert's brother 20 years ago. When Carol confronts Robert about his past, it triggers a chilling breakdown of suppressed anger, pointing to a dark history beneath the home. 

Sally's secret relationship with Patrick intensifies as a near discovery raises the stakes, forcing Sally to confront the reality of what she has gotten involved with. Kaden faces mounting financial strain as he and Dan prepare for the arrival of their baby. As Carol searches for answers about Neil Barrie, she uncovers new information about the family's past.