March 1952, the only doctor in the village Shiba had found a dead body of Sanako. The cause of death is an overdose of sleeping pills. Sanako had been suspected of killing her own husband so Dr. Shiba’s sister Kana is guessing that she has committed suicide due to being tormented by killing her husband. Mr. Kuroido, who loves Sanako, was shocked by her death and invited dr. Shiba to ask about Sanako, whether she indeed committed suicide. Later that night, Mr. Kuroido was killed. Everyone who was in Mr. Kuroido’s house is the suspect, including all the members of the Kuroido family, the butler, secretary, maids, etc. The Detective Suguro will investigate the case. Dr. Shiba will be assisting him. As things are searched by them, a shocking fact has been brought to light… (Source: agathachristie.com) ~~ Adapted from the novel "The Murder of Roger Ackroyd" by Agatha Christie.