Al's dismissal of a patient with toothache has grim consequences. Meanwhile, Zara has a confession to make through gritted teeth, and Ayesha is determined to get justice at any cost. Mrs Tembe is forced to lie to protect a friend, but it backfires as painful secrets from the past are exposed.

Zara finds herself dealing with more than one pain in the neck. Elsewhere, Ayesha is still struggling with her own pain and is presented with a new opportunity to make life difficult for Emma. A patient with insomnia isn't happy with Emma. As their day ends badly, the patient comes back to the Mill looking for a scapegoat.