St. Elsewhere - Season 3 Episode 9
Up on the Roof

A bone-marrow specialist arrives to perform a transplant between two feuding brothers and quickly befriends Annie; the last firefighter gives Caldwell a parting gift; Morrisons next door neighbor experiences a tragedy while baby-sitting Pete; Rosenthal overcomes her fears and begins an affair with Richard; and Whites killer is cornered on the hospital roof.