The Diamond BrothersTV Show

The two brothers are visited by an MI6 agent who tells them of a Dutch agent, 'eighty-six' and a nine-fingered assassin, Charon, who plans to kill a Russian diplomat on British soil. When the two brothers find him dying in a telephone box and hear his last words – "South by south-east". They go to the police and meet DCI Snape and his assistant, Boyle, but by the time they return, the telephone box and the body are gone. After a night being locked up for wasting police time, the brothers investigate his hotel-room. When two men begin searching the room, they escape the hotel and get into a taxi.