当拜姆凯什·巴克希的新委托人尼沙纳特·森博士在戈拉普殖民地遇害时，他决定在得力助手阿吉特的协助下彻查此案。
Uttam Kumar
Byomkesh Bakshi
Shailen Mukherjee
Ajit Bandyopadhyay
Shyamal Ghoshal
Dr. Bhujangadhar Das
Gitali Roy
Sunayana
Bankim Ghosh
Brajadas
Chinmoy Roy
Panu Gopal
Subhendu Chatterjee
Bijoy
Kalipada Chakraborty
Rasiklal
Nripati Chatterjee
Mushkil Mia
Subrata Chatterjee
Najar Bibi
Nilotpal Dey
Inspector
Asit Baran
Inspector Barat
Shekhar Chatterjee
