The BBC has released a synopsis for episode three of the new spin-off, Class, titled Nightvisiting.
The synopsis contains spoilers some readers may want to avoid.
London is infiltrated by an eerie alien with the ability to morph into the shape of lost loved ones. Tanya has an unexpected visitor come to her window in the dead of night – and she’s not the only one, as Ram and Miss Quill face their own startling visitors.
Nightvisiting drops on the BBC Three website on Saturday 29th October.