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2:27
Nicola Walker and Sanjeev Bhaskar describe the gruesome murder in Season 4.
2:06
Nicola Walker walks us through the emotional journey of Cassie Stuart over the years.
1:56
Unforgotten's Chris Lang offers a short masterclass in how he writes the series.
2:14
Nicola Walker and Sanjeev Bhaskar reflect on Cassie and Sunny's enduring friendship.