'Suits' Star Neal McDonough -- Wife Flung Off Stage (VIDEO)

The wife of "Suits" star Neal McDonough was flung off a famous L.A. stage ... and it was captured on video.

Neal's wife was pulled from the crowd to dance with The Dan Band during a set at the Roxy ... when an attempted twirl went horribly wrong.

Watch as Mrs. McDonough landed in her hubby's lap -- almost randomly.