On Father–Daughter Day, several teen girls at a purity retreat participate in a secret ritual and they start to see a supernatural entity. The girls need to focus on the demon Lilith that they have unleashed, as well as their fathers' expectations.
On the first Saturday after school starts, a group of social outcasts are stuck in weekend detention where the principal has them clean the school. While serving detention, they are confronted by the school's legendary hauntings.
On Independence Day, a young pregnant Mexican woman in pursuit of the American Dream and wanting to become a U.S. citizen crosses the border into the United States illegally. She soon finds herself in an American nightmare where she and those like her are actually detained in a simulation within a nearby facility.
On Father's Day, a man who lost his wife to cancer takes his two daughters on a road trip into the desert. They soon find themselves in the crosshairs of terrifying supernatural entities.
On Mother's Day, a geneticist discovers that her son has the tendencies of a serial killer. In order to find a cure, she creates clones for him to release his violent urges.
On April Fool's Day, a young man and his sister stay at a secluded motel where they endure a series of practical jokes that are frightful.
On International Women's Day, a bullying celebrity chef evading bad press is targeted at his family estate by a group of witches who seek to punish him for his crimes against women with photo evidences of him inside an old treehouse.
In a high-rise office on Valentine's Day, a male and female office worker are stuck in an elevator after working late as the woman discovers that the man is actually the building's security guard who has been stalking her.
On New Year's Eve, a babysitter plans revenge on a content creator for bullying a girl enough for her to commit suicide.
On Christmas, an unemployed actor is offered to be the mascot for the Pooka toy. Though the costume starts to affect him on it's "naughty" mode.
On Thanksgiving, an agoraphobic girl gets suspicious of her father's dark motives involving missing girls.
On Halloween, a professional hitman kills his target and wraps it up like a mummy to dispose of it. On his way to dispose of the body, he finds himself dragged to a Halloween party.
Into the Dark is an anthology series, where the theme of each episode of the series is inspired by a holiday from the month in which it is released.
,
