An introverted American student of Balkan descent travels to Yugoslavia as part of a school trip to witness an ancient pagan ritual, but the pagans hide a deadly secret.

When somebody's mother is an angel and his father is the devil, life can be really confusing. For a sweet boy like Little Nicky, it just got a whole lot worse. His two evil brothers Adrian and Cassius have just escaped from Hell and are wreaking havoc on an unsuspecting earth. His dad is disintegrating and it's up to Nicky to save him and all of a humanity by midnight before one of his brothers becomes the new Satan.

With unprecedented access, HAIL SATAN traces the rise of The Satanic Temple: only six years old and already one of the most controversial religious movements in American history. The Temple and its enigmatic leader Lucien Greaves are calling for a Satanic revolution to save the nation's soul. But are they for real?

Samantha is hired as a pizza delivery man. When, at the end of her first working day - at night - she delivers an order to a mansion in a wealthy neighborhood on his scooter, the jerk who receives the pizza does not tip her. Enraged by this, Samantha bursts into the house and finds herself in the coven, where a wealthy elite performs a mysterious ritual with her priestess (Rebecca Romijn). When Satanists discover that Samantha is still a virgin, they drug her and lock her in a room. They need a virgin to offer her up as a sacrifice. However, Samantha escapes, and then, dressed in ritual red clothes, the followers of Satan follow her in pursuit.

Chad Buckley is a horror aficionado, and he's lonely. Chad spends his days at his struggling genre video store arguing with his only regular customer, Sam. When an unsuspecting applicant shows up, Chad begins to teach him about the rules of horror and his video store at large, much to the chagrin of Sam. During Chad's on-boarding process, we weave in and out of different hilarious horror shorts, each one geared at a different set of horror tropes. As this new applicant learns the ropes, he begins to suspect Chad of something sinister, but we quickly learn that he may have a secret of his own.

After losing their only grandson, Jackson, in a car accident, grief-stricken Audrey (Sheila McCarthy) and Henry (Julian Richings), a doctor, kidnap Henry's pregnant patient with the intention of performing a "reverse exorcism," putting Jackson inside her unborn child. It doesn't take long to figure out Jackson isn't the only ghost the grandparents invited into their home. Now, it's a race against time for the couple, as well as the pregnant woman, to figure a way out of the haunting they've set upon themselves.

When Charlotte - a beautiful, broke student - is offered a job cat-sitting in a vast Georgian manor house over a long weekend, at £200 per night, she can't believe her luck, but her employers are far from being the harmless eccentrics that they appear to be.