Monster Party (2018)

A young trio make an extra buck burglarizing suburban homes. When Casper, the trio's electronics mastermind, tries to save his dad from being killed over a $10,000 gambling debt, he gets 24 hours to come up with the money. He gets the couple in the trio to help break into a dinner party at a Malibu mansion that would normally require 2 weeks of planning. They pretend to be the staff of the catering service. They have to hand over their phones when arriving. They should have left instead. The dinner party consists of people with a special, bloody addiction they've tried to control. No more.