Unforgotten– a masterclass in detonating a perfectly timed cataclysmic plot-bomb. But countless others before Unforgotten have triumphed in the art of shock too.
Here’s our selection of the 15 most shocking season finales of all time… (As is to be expected, MAJOR SPOILERS lie ahead!
You have been warned!)15) Unforgotten, season fourViewers were left open-mouthed by the conclusion to Unforgotten’s fourth season, which saw DI Sunny Khan (Sanjeev Bhaskar) solve the case of Matthew Walsh’s death, only to learn that his partner, Nicola Walker’s DCI Cassie Stuart, had succumbed to injuries she sustained in a car accident.
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