Randall and Hopkirk (Deceased) S01 E08 Whoever Heard of a Ghost Dying?

"Murder Ain't What It Used To Be!"

Knowing about Marty, a crime syndicate, in disguise, hire Jeff to begin surveillance on a gang of criminals (themselves), knowing that he will use Marty. Using an elderly psychic they detect Marty's presence, and deliberately mislead Jeff and the police.