When the Police Service of Northern Ireland are unable to close a case after 28 days, Detective Superintendent Stella Gibson of the Metropolitan Police Service is called in to review the case. Under her new leadership, the local detectives must track down and stop a serial killer who is terrorising the city of Belfast.
Gillian Anderson
Stella Gibson
Jamie Dornan
Paul Spector
Niamh McGrady
Danielle "Dani" Ferrington
John Lynch
Jim Burns
Colin Morgan
Tom Anderson
Stuart Graham
Matthew "Matt" Eastwood
