Randall and Hopkirk (Deceased) (1969) s01e22
Titre original : It's Supposed to be Thicker Than Water
Joshua Crackan is having a birthday party, gathering his relatives from various parts of the world. The assignment for Jeff is easy: he has to make certain that only those with invitations enter Crackan's property. Before the party Jeff and Marty have an argument and Jeff asks Marty to leave him alone. Now that the party guests are dying, Jeff is having second thoughts about handling the case without his ghostly partner.