- Dojima Akari (Nakama Yukie), an illustrator, is the third daughter of Chairman Dojima, the head of a construction company. During her childhood, she had an accident which left her crippled and forced her to spend her life in a motorised wheelchair.
The sudden suicide of Akari's father sets off a chain of events. Members of Dojima family and their servants are killed one after another and an investigation begins. After that, the body of their driver (Kitaro), who had hung himself, is found in the garage...