(Newser) – We've heard of not getting along with your in-laws, but one UK woman took things exceptionally far: She didn't like her brother's fiancee, so she pretended to be the woman, called up the Plymouth Registry Office, and canceled the wedding. Needless to say, things did not end well for Ann Duffy; this week she was sent to jail for eight weeks, the BBC reports. She was also slapped with a restraining order by the brother's now-wife. Even weirder: She's reportedly the one who introduced the pair back in 2012.

After making the call, the 50-year-old called her brother and told him, "I have saved you from a divorce. I have canceled your wedding. Would you like me to send you the confirmation email?" Instead, the man called the police, and he and his wife-to-be reinstated the ceremony, which took place in November; the Mail adds that Duffy showed up at the registry office on the happy day and "showered" the couple with "abuse." Duffy apparently dislikes her sister-in-law for "trying to take her brother away"; there was also friction over how to care for Duffy's ailing mother. (Read more strange stuff stories.)

