| England. 1925. At a lavish country house party, a practical joke appears to have gone horribly, murderously wrong. It will be up to the unlikeliest of sleuths - the fizzingly inquisitive Lady Eileen ‘Bundle’ Brent - to unravel a chilling plot that will change her life, cracking wide open the country house mystery. |
| Name | Character | Episodes |
|---|---|---|
| Helena Bonham Carter | Lady Caterham | 1 |
| Martin Freeman | Superintendent Battle | 1 |
| Edward Bluemel | Jimmy Thesiger | 1 |
| Mia McKenna-Bruce | Lady Eileen 'Bundle' Brent | 1 |
| Mawaan Rizwan | 1 |