Asylum seeker Rahim Mohammadi's and green-fingered Lea Adri-Soejoko's allotments were a safe haven for them both, but while Lea saw the gardens as a community hub, Rahim saw them as a chance to snatch power.
David Clarke and David Roustoby's dynamic relationship as neighbours made them as likely to get a drink together as they would consider each other enemies. But following one's mysterious death a drunken boast led to the other's arrest.
Vera Hudson was a beloved member of the community in Hull, but no-one but her knew about her unpredictable upstairs neighbour, Mark Jewitt, until it was too late. When Vera knocked on his door to ask for help he brutally attacked her.
When 15-year-old Janet Commins was violently assaulted and killed in 1976, police were eager to blame Ian Jones, a barely literate gypsy. However, in 2016 DNA evidence proved that ex-soldier Stephen Hough was the real culprit.
A butcher living in the Polish community in Hull secretly had a history of depraved acts that went unpunished until the day a young woman went missing and he came up as the prime suspect.