Chimera: Episode Four - a podcast by BBC Radio 4

Part 4 of the conspiracy thriller. Written by Lucy Catherine, starring Hattie Morahan and Jonathan Forbes.

A near-death experience and a mysterious text message lead Helen to contemplate a sinister connection between her unborn baby and genetically engineered cattle.

A gripping thriller, chart topping podcast and winner of Best Sound (BBC Audio Drama Awards) and Best Fiction (British Podcast Awards), now Tracks is back with another 9 part headphone filling thrill-ride.

Helen…. Hattie Morahan
Freddy….. Jonathan Forbes
Dr Wolfs.... Rhodri Meilir
Sam.... Morgan Watkins
Receptionist.... Jeanette Percival

Lead writer.... Matthew Broughton
Directed by Carl Prekopp
Produced by James Robinson
A BBC Cymru Wales Production

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Website of BBC Radio 4