the wheels come off

the wheels come off

Things go disastrously wrong; a situation devolves into ruin or chaos. But it's this point in the film where the wheels come off the story, and the whole thing ends up looking like a big, unfunny joke. Where the wheels come off for most people is the failure to set aside any meaningful savings to go towards a pension or a mortgage.
See also: come, off, wheel

the wheels come off

things go disastrously wrong (causing an enterprise to fail).
2006 Sunday Times There is not much a captain can do when the wheels come off and batsmen and bowlers underperform.
See also: come, off, wheel