like a thief in the night

US /laɪk ə θiːf ɪn ðə naɪt/
UK /laɪk ə θiːf ɪn ðə naɪt/
"like a thief in the night" picture
1.

как вор в ночи, неожиданно

unexpectedly and without warning, often with negative connotations of stealth or sudden departure

:
He left like a thief in the night, owing everyone money.
Он ушел как вор в ночи, задолжав всем деньги.
The storm arrived like a thief in the night, catching everyone off guard.
Буря пришла как вор в ночи, застав всех врасплох.