Both a journalist and a documentary filmmaker chase the story of a murder and its prime suspect.
| Actor | Role |
|---|---|
 Daniel BrühlThomas Lang | Thomas Lang |
 Kate BeckinsaleSimone Ford | Simone Ford |
 Cara DelevingneMelanie | Melanie |
 Ava AcresBea | Bea |
 Corrado InvernizziFrancesco | Francesco |
 Genevieve GauntJessica Fuller | Jessica Fuller |
 Sai BennettElizabeth Pryce | Elizabeth Pryce |
 Valerio MastandreaEdoardo | Edoardo |
 Andrea TidonaPubblico Ministero Alberto Baldini | Pubblico Ministero Alberto Baldini |
 Peter SullivanJames Pryce | James Pryce |
 Edoardo GabbrielliniRoberto | Roberto |
 Sara StewartSarah | Sarah |
 Rufus WrightWilliam | William |
 Nathan Stewart-JarrettAdam | Adam |
 Lucy CohuCaroline | Caroline |
 Sophie RundleHannah | Hannah |
 Roberta CartocciMaria Argento | Maria Argento |
 Nikki Amuka-BirdRoxanne | Roxanne |
 Alistair PetrieSteve | Steve |
 Rosie FellnerKatherine | Katherine |
| AAnjella MackintoshDocumentary Narrator (voice) | Documentary Narrator (voice) |