
A university student finds a strange blog kept by a husband during his wife's pregnancy, and from there a set of mysteries, each built around drawings the reader is invited to study, turn out to be connected.
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A writer drawn to the macabre is asked to look into a Tokyo house for sale whose floor plan has a space between its walls that no door reaches; he shows the plans to his architect friend Kurihara, who finds more that doesn't add up.

Four mystery novelists are invited to a reclusive author's birthday at his underground house built as a labyrinth, and he announces a contest whose prize is his fortune.

In 1979 the astrologer and amateur sleuth Kiyoshi Mitarai takes up a crime that has baffled Japan for forty years: an artist murdered in his locked studio in 1936, and the six young women of his family later found dismembered as his notebooks described.

In 1946 Kosuke Kindaichi travels to Gokumon, a remote island in the Seto Inland Sea, to deliver a message from a dying war comrade, who warned that his three sisters would be murdered.

Alice Arisugawa and his friends from a university mystery club travel to a remote island dotted with moai statues to solve a treasure puzzle left by a dead man, and the killings begin.

Inspector Kyoya Hayami investigates a man shot with a crossbow in the Eight Mansion, a rich family's house built in the shape of a figure eight.

On her last day of teaching, middle-school teacher Yuko Moriguchi tells her class that her four-year-old daughter's death at the school pool was no accident, that two of the students in the room killed her, and that she has already taken her revenge.

Twelve impossible-crime stories from the golden age of the Japanese mystery in the 1930s.

Impossible-crime stories by one of the masters of the Japanese puzzle mystery, written in the 1950s and 60s, several featuring Chief Inspector Onitsura.

In the 1970s, seventeen people die from poisoned drinks at a family celebration at the Aosawa clinic in a coastal city on the Sea of Japan; decades later, the people who were there tell what they remember.

Yoshitaka Mashiba, about to leave his wife because she can't have children, is poisoned with arsenic in his coffee while she is hundreds of kilometres away, and Detective Galileo is asked how.

Three people are killed in one night at Rain House, a mansion in the Taiwanese mountains, each in a locked room.