On a summer break, Amber Lopez goes through a mental breakthrough with her twisted, imaginary best friend, Hazel, and helps her go on a murder spree of all her friends so that she can be the only one remaining, even though, she isn't real.
Leonardo Leroux, a quiet bystander, watches a crime scene happen right before his eyes while being out and about as he explores more into the crime and the people within it. he gets himself wrapped in it while discovering a terrifying secret.