The Nightmare Neighbour Next Door is a British documentary television series broadcast on Channel 5 since 1 April 2014.

The show follows some of the most extreme cases of fallouts between neighbours all over the country, using real-life interviews and reconstruction.

The hour-long show goes behind closed doors to find out what happened between neighbours when disputes arise, following some of the most extreme cases in the country.

During each episode, up to 4 stories of neighbourly disputes can be covered, with the show normally going back and forth between them.

The first series aired on Tuesday nights at 8 PM (GMT).