《神探夏洛克：福至如归》讲述了一系列看上去似乎毫无关联的犯罪事件从西藏延伸至印度再到德国。夏洛克·福尔摩斯已经离开两年了，但一些人不太确信他已经死了……John and Lestrade try to move on with their lives after Sherlock's apparent death. However, Anderson believes he is still alive.
