Kevin McCallister's parents have split up. Now living with his mom, he decides to spend Christmas with his dad at the mansion of his father's rich girlfriend, Natalie. Meanwhile robber Marv Merchants, one of the villains from the first two movies, partners up with a new criminal named Vera to hit Natalie's mansion.
Wealthy slacker college student Mark, his new girlfriend Sarah, and their friends are invited to a special showing at a mysterious wax museum which displays 18 of the most evil men of all time. After his ex-girlfriend and another friend disappear, Mark becomes suspicious.