Uncovered by the Venona project, for 10 points, name this Soviet spy ring led by a namesake double agent in Britain around 1950.
One member of this group fractured his skull when he was pushed down a marble staircase at the Royal Automobile Club on Pall Mall after a drunken argument, causing lifelong mental trauma. Another probable member wrote a book on the "Social History of Christian Polygamy" entitled After Polygamy Was Made a Sin and a study on Moliere. This group was assisted by the publisher of the New Republic, Michael Whitney Straight, and had its regular activities planned out by Theodore Maly. Their number likely included John Cairncross as well as Anthony Blunt and several members of the Apostles Club, who often approached employees working at Bletchley Park. A more famous member's meeting with Australian actress Coral Brown is the basis of Alan Bennett's film An Englishman Abroad. Those members were Donald Maclean and the flamboyantly gay Guy Burgess, who tried to protect its principal by fleeing separately. Uncovered by the Venona project, for 10 points, name this Soviet spy ring led by a namesake double agent in Britain around 1950.
One member of this group fractured his skull when he was pushed down a marble staircase at the Royal Automobile Club on Pall Mall after a drunken argument, causing lifelong mental trauma.
the Cambridge Five spy ring [or the Cambridge Four; or Kim Philby's Soviet spy network; or Harold Adrian Russell Philby; or the MI6 spy ring; or the MI5 spy ring; prompt on answers, such as "British spy scandal", that do not include the underlined words]