In 2019 Brit-thriller "Cordelia" theatre actress Antonia Campbell Hughes (good - tho less so when also playing her identical twin) lives in a London flat with said twin, neighboured by Alun Armstrong, cellist Johnny Flynn (great as ever), et al. When her twin leaves for a weekend (with bf Joel Fry) Campbell Hughes gets to know the flirtatious Flynn, but also attracts a sinister stalker (could it BE Flynn?) AND struggles mentally with a recent trauma she's still recovering from. The quietly accomplished Anthony Shergold directs with slow-burn class, though he really stands out as co-writer with Campbell Hughes of the darkly twisty script. It's a modest but highly enjoyable film.