Wiktionary
turn of events
n. (context idiomatic English) A deviation from the expected course of events.
WordNet
Usage examples of "turn of events".
Retiring to her apartments, she informed her ladies of the latest turn of events, at which they burst out weeping and wailing.
Mr Stranack's solicitor, severely puzzled by the turn of events, showed Sir Frank the conveyance of the title deeds and Fidelity's receipt for three thousand pounds.
Kuo certainly would have laughed if he had been able to see this turn of events.
No, he couldn't be sure, but it was the most likely turn of events.
In fact, now that she had thought of such a gruesome turn of events, it would almost certainly come to pass.