What if you took a vacation with your friends and fiancee to a beach house off of the coast of Santa Monica, and suddenly everything went from fun and amazing to terrifying and bloody? Thalia Harris, the guys of 5sos and their friends plan a vacation trip to Santa Monica for a week at a beach house. What happens when they witness a murder take place right infront of them in the middle of the night and they are now the serial killers next victims? Who will survive and who will die?