Working with local cop DS Nikki Martel, Mike investigates the death of a diabetic estate agent force-fed marmalade; Pearl discovers Whitstable may have a mysterious benefactor.

Pearl agrees to help a woman who received a note claiming her missing husband did not die from suicide; as Christmas approaches, Mike sinks into a depression, despite taking on a new flat in Whitstable.

When a mother takes her daughter out for a boat ride despite the father's wishes, the boat starts taking on water and the two need to be rescued; Pearl investigates while Mike tries to enjoy his time off from police duty before New Year's Eve.

A 30-year-old skeleton washes up on the shore, and the victim has a very personal connection to Pearl; Pearl's budding romance with Mike is threatened when he identifies a suspect close to home.