After the death of their mum, twins Chloe and Charlie are shocked when their dad introduces Lynne as their 'new mummy'. Lynne, a district nurse, is trusted in the community, but the twins can see her kind smile doesn't meet her eyes. In the months that follow they suffer the torment Lynne brings to their house as she stops at nothing in her need to be in control. Betrayed, separated and alone, the twins struggle to build new lives as adults, but will they find happiness or repeat past mistakes? Will they discover Lynne's secret plans for their father? Will they find each other in time? The Stranger in My House is a gripping 'cuckoo in the nest' domestic thriller, exploring how coercive control can tear a family apart. Set in Yorkshire and Cardiff, from the 60s to the winter of discontent, The Stranger in My House dramatises both the cruelty and the love families hide behind closed doors.