Tantei Gakuen Q EP8 - The Pretty-Boy Detective! He Appears at Last!!

Q and A classes go to a field trip to Kirisaki Island along with Dan, Katagiri and Maki. They are also joined by a mysterious handsome boy. Once there, they begin classes - Dan tells them that they are there to solve the mystery of murders from about 50 years ago that happened in the island. The group finds that one of the three portraits in the main room, has been torn to half using one of the missing kitchen knives. Maki also tells them that the key to the rooftop store room is missing and he gets a duplicate. Later on, Dan describes the details of the murder and leads them to the room in the rooftop. As he describes the scene of a double-locked-room mystery, the group finds that Saburōmaru has been murdered, leaving only the left half of his body behind - is the island going to be haunted by another string of murders committed by a Jack the Ripper wannabe?