Ken Marino has a stomach problem from hell, literally, in the red band trailer and poster for Bad Milo. The actor stars as Duncan, who thought his life couldn't get much worse before learning that he has a pint-sized demon living inside his intestines. When it forces its way out, Duncan tries to befriend this evil creature before it does more harm. Take a look at the one-sheet and this age-restricted footage, if you're over the age of 18, for this comedy co-starring Gillian Jacobs, Stephen Root, Peter Stormare, Mary Kay Place, and Patrick Warburton. Bad Milo debuts on VOD and iTunes August 29 before hitting theaters on October 4.

<strong><em>Bad Milo</em></strong> Poster

Duncan's (Ken Marino) life is a real pain in the ass. Tormented by a manipulative, crooked boss (Patrick Warburton), a nagging mother (Mary Kay Place), a deadbeat new age dad (Stephen Root), and a sweet, yet pressuring, wife (Gillian Jacobs), his mounting stress starts to trigger an insufferable gastrointestinal reaction.

Out of ideas and at the end of his rope, Duncan seeks the help of a hypnotherapist (Peter Stormare), who helps him discover the root of his unusual stomach pain: a pintsized demon living in his intestine that, triggered by excessive anxiety, forces its way out and slaughters the people who have angered him. Out of fear that his intestinal gremlin may target its wrath on the wrong person, Duncan attempts to befriend it, naming it Milo and indulging it to keep its seemingly insatiable appetite at bay.