Masterpiece Mystery! Unforgotten: The Complete Second Season (TheaterByte Blu-ray Review)May 30, 2018 By Brandon A. Duhamel Leave a CommentDCI Cassie Stuart (Nicola Walker) and DI Sunil ‘Sunny’ Khan (Sanjeev Bhaskar) return and must uncover the mystery behind who murdered a a nearly perfectly preserved corpse discovered at the bottom of a lake.