do a moonlight flit
US /duː ə ˈmuːn.laɪt flɪt/
UK /duː ə ˈmuːn.laɪt flɪt/

1.
to leave a place suddenly at night, especially in order to avoid paying rent or debts
:
•
The tenants did a moonlight flit, leaving behind a mess and unpaid rent.
•
After accumulating huge debts, he decided to do a moonlight flit to another country.