Mental (2021)

Dmitry is a psycho. This secret is safe with his therapist, and Dmitry has a high-paid white-collar job. His boss would be totally surprised to learn that Dmitry's best financial forecast moves were guided by the voices in his head. Dmitry has several voices, each seems to be 100% real with own ambitions and personality. However, to stay sane, Dmitry has to constantly keep him imaginary population at bay and steer clear of new characters settling in. The permanent inhabitants include Dmitry's ex-wife and her lover - both found dead in their bed. Dmitry sets to find their murderer in order to get rid of the couple, become normal and win back custody of his son.