Watching from the dark

Aidan Poole logs onto his laptop late at night to Skype his girlfriend, Zoe. But to his horror, he realises she is not alone. Completely helpless, all he can do is listen to the sounds of a violent struggle. And then a chilling silence. He's desperate to find out if she is OK. But then why is he so hesitant to call the police? When his messages finally reach them, DCI Jonah Sheens and his team take the case - and discover the body.