Another partite investigation and prosecution for the Yard's steady, stalwart Gidean involves him in (a) a series of robberies which take place on the bus line (b) certain ""suicides"" in front of tube trains and finally (c) the last casualty of the as yet unidentified Seaside Strangler. The possibility of a tie-up here (a and b) lends interest to a rather slow motion addition to this series.