In the heart of Canterbury, Alison Woods (Rose Ayling-Ellis) leads a quiet life working in a police canteen and a local bar, all while caring for her Deaf mother. Her world shifts when Detective Ashleigh Francis (Charlotte Ritchie) recruits her for her exceptional lip-reading skills to assist in a covert police operation. As Alison delves deeper into the criminal underworld, interpreting secretive gang communications, she becomes entangled in a dangerous liaison with Liam Barlow (Kieron Moore), a key suspect. Torn between duty and personal risk, Alison navigates a perilous path where silence speaks louder than words.

Created and written by Catherine Moulton, Code of Silence is a six-part crime drama produced by Mammoth Screen for ITVX. Directed by Diarmuid Goggins, the series showcases a diverse cast, including Andrew Buchan and Nathan Armarkwei Laryea. The show premiered on May 18, 2025, and is also available on BritBox in North America.