Watch Silent Witness online: Episode 7 Double Dare (1)

Four years ago, Anna Holland and her boyfriend, Michael Drage, brutally stabbed a young mother to death in front of her children - or so the public believed. However, Nikki’s evidence proved that Anna didn’t take part, so she was only sentenced to four years instead of life. Then, on her release from prison, she herself was murdered. Emilia Fox Nikki’s case was brought into the limelight again, but the only witness to the murder, Anna’s police protection officer Carla Masters, was in a coma recovering from horrific burns. When Anna’s mother confessed she had withheld evidence at the trial that could have suggested Anna was guilty, Nikki began to doubt herself.

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