The Iris Affair S1, E4

A rootless genius, Iris Nixon, steals an enigmatic code from a charming philanthropist and disappears. A tense countdown ensues as she races to unravel the code's mystery.

Director: Neil Cross

Cast:Niamh Algar , Tom Hollander , Sacha Dhawan , Maya Sansa , Meréana Tomlinson , Marco Leonardi , Angela Bruce , Peter Sullivan , Debi Mazar