idk, the drugged up sherlock was cool – and the thing about Mary being a figment of Johns imagination –
The thing that’s a bit poo was that there wasn’t any real mystery to solve. They knew who the bad guy was and what he was doing from the start. It was all a bit floppy. And the whole “I’m a killer, a cereal killer” thing was just cringeworthy.
It’s almost like they have this over-arching story line of John’s demise from the death of his wife, and this Sherlock sister thing – but they’ve not really any real idea how to fill the actual episode with anything that connects the things together.
It’s all gone a bit James Bond with the car thing also.