अपनी भाषा में प्लॉट जोड़ेंThe series follows the adventures of married couple Nicola and Charlie Buchanan, who run an industrial cleaning business while solving the most baffling murder mysteries.The series follows the adventures of married couple Nicola and Charlie Buchanan, who run an industrial cleaning business while solving the most baffling murder mysteries.The series follows the adventures of married couple Nicola and Charlie Buchanan, who run an industrial cleaning business while solving the most baffling murder mysteries.