Sarah Lancashire returns in the acclaimed BBC thriller written by Sally Wainwright. No-nonsense police sergeant Catherine Cawood is back heading up her team of dedicated police officers in the Calder Valley in West Yorkshire. While on duty, she makes a gruesome discovery – a body. The victim’s injuries bear a striking similarity to a string of other murders over the previous few months, suggesting a serial killer is on the loose. But the case becomes even more shocking when it emerges that Catherine knows the victim – something that could have serious repercussions for both herself and her family.

杰克（希米什·帕特尔 Himesh Patel 饰）是一个名不见经传的小歌手，除了他的好友艾利（莉莉·詹姆斯 Lily James 饰）以外，没有一个人相信他能够出名。一场意外中，杰克震惊的发现自己被传送到了某个平行世界中，在这个世界里，披头士未曾存在过，这也就意味着，杰克是这个世界里唯一知道这支乐队，听过他们的作品的人。