Season 4 consists of three feature-length episodes that take the series to its darkest and most emotional places yet:

The season opens with Sherlock Holmes back in London, bored and restless. Dr. John Watson, now a father to baby Rosie, has put his blogging days behind him. Mary Watson (née Morstan) is trying to live a quiet life.

Have you already watched Sherlock Season 4 ? Tell us in the comments below: Did Eurus’ puzzle make sense to you, or did you have to rewind with Vietsub turned on? Share this article with fellow Sherlock fans in Vietnam!