"It's a ___" (2021 miniseries chronicling the AIDS crisis) (3)
(Other definitions for boy that I've seen before include "Young male" , "Male child" , "Youth" , "Young man" , "Son" .)
(Other definitions for sin that I've seen before include "Go astray" , "Evil" , "Moral offence" , "Depravity" , "Wrongdoing" .)