However, he hears the old organ playing the bizarre tune again. Courageously, he runs back in the mansion and finds out his pal Mr. Kelsey the janitor, playing the organ. Kelsey, the gardener for the Simmons family, admits to being accountable for the bizarre occurrences Luther witnesse. He tells Luther that Herkie, the police officer and acting security guard, kept him from coming in the house earlier to help Luther confirm his story for the judge,and jury. Upon hearing a screech, they both go down the hidden staircase to find Nicholas Simmons holding Alma hostage. Kelsey accuses Simmons for killing his aunt and uncle for their money and leaving Kelsey's animal shears behind to frame him.Nicholas Simmons' planned destruction of the house was an effort to destroy the secret staircase that would mess up his alibi. Heggs rescues Alma by hitting Simmons unconscious with a punch from behind.
Nicholas Simmons is jailed and tied to a chair. Kelsey states the key details to the police chief and others and the case is closed. Alma takes Hegg's hand, giving thanks for saving her. In the last scene, Luther marries Alma at a small wedding. At the end, the wedding's music suddenly changes to the bizarre organ music of the Simmons' mansion. Everyone turns to see the small keys moving by themselves, showing that there really is a ghost after