[3] Dr. Watson is working as resident physician at Musgrave Manor in Northumberland, a stately home which is also used as a hospital for a number of servicemen suffering from shell shock.

[4] When Sally Musgrave displays her feelings for one of the wounded American fighter pilots, Captain Pat Vickery, who is currently recovering at the family estate, her brothers Geoffrey and Phillip are quick to show their dismay.

Watson, who is in charge of the medical facility, goes to fetch his dear friend Sherlock Holmes to bring some clarity to the case of the attack.

The game gives them clues to the family's secret burial crypt underneath the house, and there they find Brunton murdered, clutching a case containing an old document.

Explaining the meaning of the document found in the crypt to Sally, Holmes suggests that Sexton had discovered an old land grant that entitled the Musgraves to a fortune of millions of pounds, and had hatched a deadly scheme to gain it for himself.

The devious doctor had killed both brothers, making Sally heir to the money, and then sought to claim her as his bride by framing her sweetheart, Vickery, for the slayings.

The time's coming, Watson, when we shan't be able to fill our bellies in comfort while other folk go hungry, or sleep in warm beds while others shiver in the cold; when we shan't be able to kneel and thank God for blessings before our shining altars while men anywhere are kneeling in either physical or spiritual subjection.... And God willing, we'll live to see that day, Watson."