kamaleshwar mukherjee approaching movie good night city around corner ensemble getting ready cast spell thinker bengali movie lover teasing audience intrigue posters update film official poster released film feature of speech saswata chatterjee rituparna sengupta ritwick chakraborty saayoni ghosh paayel sarkar lead persona ritwick chakraborty playing psychological affected role mistrust serial killer rituparna sengupta portrays psychologist saswata chatterjee cast senior officer crime branch reportedly also flashbacks mentally unbalanced patient include two girls past life girls reportedly played saayoni ghosh paayel sarkar flashbacks trace causes deliver condition psychological patient good nighttime city revolves around three deadly criminal passionate police officer renowned psychiatrist becomes psychological victim unusual write up tale portrays one night twisted pillow slip crime takes place likewise criminal mind growing inside hidden drab part human judgment