No, Cessna 335.
I do remember the night - pea soup at ground level. Not cold enough for ice to be an issue.
The artificial horizon failed - with no ground reference and no stars, they were flying blind and without orientation information other than that provided by the inner ear. The thinking is, the pilot (his son) maneuvered the plane into a stall attitude and could not recover from the resulting spin.
I would have rigged some kind of plumb bob from the cockpit ceiling to act as a direction indicator.