Year 1763. Forced into exile, the famous libertine Giacomo Casanova leaves Paris and travels to London, where he meets Marianne de Charpillon, a young prostitute to whom he is so attracted that he forgets about the other women.

On the surface Gerty and Matthew seem like the quintessential quaint old British couple, but Gerty has a thirst for vengeance. This one act film has Gerty invite her young neighbour Rodney for tea, but unbeknownst to her that is the last person Matthew wants to see. They discuss the passing of their sweet dog Toby and eventually Gerty's motives become clear.