Polymorphia (2019)

Klaus Flue is a vegan man who suffers from Dissociative Identity Disorder. He is obsessed with his cheating wife Eileen who left him. Klaus takes medication to shut down his inner-voice Serling that persuades him to do bad things. After a long journey in this surrealistic day he discovers that his co-worker Mike is the one cheating with his wife. Klaus will now have to face the responsibility for the twisted decisions that his inner voice will push him to do.