Best friends Jess and Katie are inseparable and have always had each other's backs. Katie is unsure of famous crime writer and the newest flawless man, Nick, when Jess begins a brand new relationship that is serious. She wishes to encourage her companion's newfound happiness but is fiercely protective. Katie's obsession with all Jess proves deadly and it's all up to the recently vilified Nick to expose the bestie until it is too late.