Wonderful Nightmare (Korean: 미쓰 와이프; RR: Misseu Waipeu; lit.

Miss Wife) is a 2015 South Korean fantasy romantic comedy film starring Uhm Jung-hwa and Song Seung-heon.

She wakes in heaven to find that her death was a clerical error and it was actually an old woman with the same name who was meant to die.

A Taiwanese film adaptation titled Beautiful Accident was released in 2017, starring Gwei Lun-mei and Chen Kun.

In December 2023, it was announced that a Philippine film adaptation of the same title will be released in 2024, to be starred by Sarah Geronimo and Matteo Guidicelli.