This is exclusive C21 subscriber content
To view you need a Basic Site, C21Pro or Access All Areas subscription:
Registered users and subscribers sign in here:
For phone support please call C21 on +44 (0) 20 7729 7460
The Secret reunites Redhead with star James Nesbitt, with whom he first worked on 2002 film Bloody Sunday, and is the latest show to join Hat Trick's growing scripted slate, which last year saw it produce Jed Mercurio's real-time medical drama Critical for Sky1.
