In 1905, a man travels to a remote island in search of his missing sister who has been kidnapped by a mysterious religious cult.
Dan Stevens | Thomas Richardson |
Michael Sheen | |
Lucy Boynton | Andrea |
Bill Milner | |
Kristine Froseth | Ffion |
Annes Elwy | Sinead |
Paul Higgins | Frank |
Mark Lewis Jones | Quinn |
Elen Rhys | Jennifer |
Ross O'Hennessy | John the suspicious one |
Catrin Aaron | Elaine |
Richard Elfyn | Charles |