While the Blitz bombards London, the boisterous grandchildren of Sir Richard March have descended upon Swanswater Manor in Kent for a family gathering and the finalising of the patriarch's will. Disgruntled by the behaviour and life choices of his heirs, March seems poised to deny all of them their inheritance and heads out to his lodge to make arrangements -- only to be discovered dead the next morning with strychnine in his blood. With...