“The Adventure of the Resident Patient” is one of the 56 Sherlock Holmes short stories written by British author Sir Arthur Conan Doyle. Having been a brilliant student but a poor man, Dr. Trevelyan has found himself a participant in an unusual business arrangement. A man named Blessington, claiming to have some money to invest, has set Trevelyan up in premises with a prestigious address and paid all his expenses. In return, he demands three-fourths of all the money that the doctor’s practice earns.