

Sybil Foster escapes from a psychiatric hospital, only to find herself the prime suspect in a series of murders. The police investigation, led by DS Doug Duvall unearths skeletons from her past, and a link to a prominent political figure who may hold the key to unlock the secrets of the past - and open the door to solving the mysteries of the present.
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Cast

Joanne Froggatt
Sybil Foster

Gregor Fisher
DS Doug Duvall
Mhairi Steenbock
DC Mairi Wilson

Ralph Ineson
DCI John Carter

Phyllis Logan
Karen Foster

Christopher Fulford
Dr. Webster

Dean Andrews
Mark Lanser

Michael Attwell
Mr. Greenside

Elizabeth Berrington
Nurse Peters

David Bowles
Vicar

James Cartwright
Hacker
Tony Nyland
Allotment Gardner
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