Chiriakhana or Chiriyakhana () is a 1967 Indian Bengali-language crime thriller film, based on the story of the same name by Sharadindu Bandyopadhyay, directed by Satyajit Ray starring Uttam Kumar as Byomkesh Bakshi. The screenplay is written by Satyajit Ray. The film was once considered Ray's worst film because of its complex plot and unfaithfulness to its source material, however the flexible acting of Uttam Kumar was praised by many critics at that time. The film was remade in Hindi as a television series Byomkesh Bakshi with Rajit Kapoor aired in Doordarshan Plot Private detective Byomkesh Bakshi and his best friend and partner, author Ajit Kumar Banerjee are chatting when a new client, Mr Nishanath Sen, knocks on the door. Nishanath is a middle-aged ex-judge and a rich merchant. He needs Byomkesh for a special reason. He is searching for the details of an old Bengali movie song ('Bhalobasar tumi ki jano') and the actress who sang it, Sunayana, as he thinks that she is hiding somewhere inside his huge nursery, Golap Colony, under a fake identity. Nishanath as a judge hanged at least twenty people, but after his retirement, due to lingering moral regrets, he has sheltered a few homeless people, who have either long criminal records or other qualities that make them social outcasts. Byomkesh listens to everything and accepts the case. Sen pays him the advance and requests that he visit his nursery. Byomkesh meets a Bengali movie expert, Ramen Mullick, and learns about the movie producer's son Murari. He learns that while Murari was making love with Sunayana, he was murdered in his own room. 20,000 rupees and many gold ornaments were stolen from Murari's room. Suspecting Sunayana's role in Murari's murder, a court issued an arrest warrant against her, but she disappeared and her whereabouts are unknown. Ramen gives the details about the actress and also about the film and promises to assist Byomkesh. The next day, Byomkesh and Ajit visit Sen's bungalow and nursery in the 24 Parganas district to meet the residents whom Sen has sheltered. Byomkesh comes disguised as a Japanese horticulturist named Okakura, while Ajit appears as his Indian assistant. Sen shows them the entire nursery including dairy, poultry and an orchid house. He introduces all the residents and Byomkesh photographs everyone. Within a few days, Sen makes another phone call to Byomkesh requesting him to visit again, but the conversation