Actor Saif Ali Khan's upcoming film 'Kaalakaandi' will release on September 8. It is a dark comedy which revolves around six characters from different sections of Mumbai. Actors Deepak Dobriyal, Kunal Roy Kapoor, Shenaz Treasury and Neil Bhoopalam will also star in the film. 'Kaalakaandi' marks the directorial debut of Akshat Verma, who wrote the screenplay for Delhi Belly (2011).