When Emma and John Barnett decide to add a kitchen extension to their house, neighbourly friendships prove not to be quite as harmonious as they seem - and lead to life-threatening secrets.

Tensions rise as a concerned Emma starts to suspect an affair between her husband and her best friend, while Derek and Barbara continue to wage their war against her and her extension.

As the street dissolves into mayhem, Sonia makes an unexpected discovery, and the anonymous notes to Emma become even more sinister and threatening.

After multiple anonymous threats, Emma installs a CCTV camera at home, determined to find out who is sending the sinister notes, while the walls are closing in at work as her colleague Ian becomes determined to prove she lied in court.

With friendships and relationships at breaking point, Derek is in hospital fighting for his life. Alan approaches John with life-changing news about Sonia, and as a result John seeks Sonia out to talk to her about where their future might lie.

Emma must dig deep and rely on her initiative to find out what led to cuddle in her home. With everyone on the street a suspect and time running out, she finds her life in grave danger.