A descriptive term for when after everything is going absolutely excellent, everything that could possibly go wrong, does.
Act 1: Romeo and Juliet's Characters develop seperately...
Act 2: Romeo meets and professes his love to Juliet, they get married...
Act 3: They both die.
Act 3, everything goes to hell.
The aliens are invading, my toaster exploded, your sister's getting engaged and my insurance rate just went up!
Must be act 3.