Ep 2. The Sign of Three

Sherlock season 3 episode 2, titled "The Sign of Three," is a thrilling episode that explores the personal life of Sherlock Holmes as he embraces his role as best man for his loyal friend and colleague, Dr. John Watson.

The episode begins with a flashback to Sherlock and John's first meeting, detailing their unlikely friendship and the strange cases they have solved together over the years. However, the majority of the episode takes place on the day of John's wedding, as Sherlock prepares for his best man duties and becomes increasingly anxious about his role in the ceremony.

As the wedding looms, Sherlock unravels a complex mystery involving the members of the wedding party, each of whom has a hidden agenda, and an unexplained series of deaths that seem to be pointing towards foul play. With the clock ticking, Sherlock must use all of his deductive skills to piece together the clues and prevent any further harm to the wedding guests.

In addition to the main mystery, the episode delves into the backstories of several key characters, exploring their motivations and relationships with one another. Meanwhile, Sherlock must also navigate his own complicated feelings towards John and his impending marriage, as well as his own sense of loneliness and isolation.

Overall, "The Sign of Three" is a brilliant and complex episode that deftly balances humor, mystery, and character development. With its intriguing plot twists and emotional depth, it is a standout entry in the Sherlock series and a must-watch for fans of the show.