The Red-Headed League is looking for a new member to assist with minor tasks. The salary for this position will be four pounds a week. All red-headed men in good health and over the age of twenty-one will be considered. After Jabez Wilson's well-paid position with the Red-Headed League ends with no warning, he asks Holmes to find out why. What starts out as a straightforward investigation turns into a midnight stake-out as Holmes attempts to prevent a shocking crime.