ITV英剧《不可遗忘》宣布续订第4季,新季共6集,主演Nicola Walker、Sanjeev Bhaskar和主创Chris Lang回归。该剧聚焦一些“不可遗忘”的旧案子,很精彩、良心的罪案类剧集。With Cassie still on sick leave - will she be able to stay away when Sunny tells her of the latest case? A decapitated body found at a scrap yard. Again, we are introduced to a collection of seemingly unrelated characters who may or may not be the clues to this historic crime.