Sarah (Deborah Grant) is hired as Peter's new office secretary. Peter is attracted to Sarah and quietly contrasts her ambition to Prue's apparent recklessness. Sarah's alcoholic father arrives unannounced. Cassie, fearful that the family is growing apart, suggests that she and Peter holiday in Scotland with their two young sons, where they honeymooned. Peter remains increasingly obsessed with Prue...

• Frank Finlay
• Roger Rees
• James Aubrey