Denys Blakelock

During World War I, a novelist declared dead is recruited by British intelligence and sent to Switzerland under a new identity to assassinate a German spy. Teamed with a fellow agent posing as his wife and an eccentric assassin known as “the General,” the trio close in on their target — until two of them grow ambivalent when their duty to the mission clashes with their consciences.

Lazybones is an idle baronet. He hasn't a care in the world until his father cuts him off without a penny. He then meets an American heiress & marries her but finds she has been disinherited as well. They find even more trouble in the shape of the American's cousin.