Sherlock Holmes is forced to confront his age and health condition as he struggles to solve the murder of a fellow detective.
| Actor | Role |
|---|---|
 John McCaffreySherlock Holmes | Sherlock Holmes |
 Blake EdgertonJohn Watson | John Watson |
 David FittonInspector Lestrade | Inspector Lestrade |
 Declan SeefeldEdward Parkes | Edward Parkes |
 Sarah CarolineBrucia Parkes | Brucia Parkes |
 Daniel ReidOscar Goldman | Oscar Goldman |