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A deaf catering worker who is struggling to make ends meet is called upon by a police detective superintendent to lip-read the conversations of criminals.

Alison's vital lipreading aids the detectives in uncovering the gang's plans, but she can only conceal her meeting with Liam from them for so long.

Alison's risky tactics identify the gang's target, but her deception and the gang's escalating violence threaten to unravel her relationship with Liam.

Alison joins Liam on a luxury trip where she scrabbles for clues about his plans while torn between her growing feelings for him and the police's doubts.

Alison discovers Liam's betrayal and races to stop the gang's heist - chaos erupts as lives are endangered and Alison is forced to confront the fallout.

Alison is reeling from Liam's betrayal and consumed with guilt over her role in the heist when her life is suddenly threatened by one of the gang.