Malcolm gets his first official girlfriend; Dewey makes a non-imaginary friend; Francis takes refuge with a mad bomber in a remote Canadian cabin.
Melinda helps a patient of Eli's who thinks he's being watched by his sister's ghost. Meanwhile, Melinda and Jim are concerned when Aiden talks about his shiny friends that aren't ghosts but something else.
When the jeweler to Boston’s “cool and famous” dies, the investigation leads to a member of the Isles family … which leads to a secret Maura has been keeping for almost all of her life.
When the tax man takes away the Professor's inheritance and his old apartment has been occupied, Nikki offers him her home; Andell convinces Nikki that the Professor will not marry her if she continues to let him freeload.
