Ms Fisher's Modern Murder Mysteries (2019)

S5E26 The Two Doctors Stone

As Alex and Donna get ready for their weekend trip, Donna can't shake the feeling that Trisha might be unwell. She notices Trisha munching on bananas, recalling that Jeff had done the same before falling ill. Meanwhile, Alex's colleague Dave (Bob Crane) attempts to reassure them that everything is fine. In a surprising twist, it’s revealed that Jeff is the one who actually has a fever. It turns out Trisha has been snacking on bananas in anticipation of her promised treehouse, excited to climb trees like a monkey.