Neighbors in a block wake one morning to find they have been sealed inside their apartments. Can they work together to find out why? Or will they destroy each other in their fight to escape? Louise Brealey, Lee Ross, Sheila Reid, Pippa Nixon, Claire Greasley, Andrew Leung, Billy Postlethwaite Added on Netflix 2022-04-22. Youtube Trailer

A modern update finds the famous sleuth and his doctor partner solving crime in 21st century London. Benedict Cumberbatch, Martin Freeman, Una Stubbs, Rupert Graves, Louise Brealey, Mark Gatiss, Andrew Scott Added on NOW 2022-11-22, leaving 2024-12-30. Added on Amazon Prime 2023-03-14. Youtube Trailer