S.W.A.L.K.

Ruth is concerned about becoming increasingly forgetful, and is even more perturbed when Martin offers to perform a mini mental state examination. It confirms she is showing early signs of dementia. Meanwhile, Louisa plans a special evening to celebrate Martin's birthday, and Al decides to throw Morwenna a surprise engagement party on the same night. There are also problems when Louisa's class tutorial ends in disaster.

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S09E04 - Paint it Black