After the jury delivered its verdicts, Ms Willoughby said in a statement: “As women we should not be made to feel unsafe going about our daily lives and in our own homes.”
Essex Police discovered a “kidnap kit” consisting of hand and ankle shackles, rope, 400 metal cable ties and bottles of chloroform.
Plumb did not attend his appeal hearing either in person or remotely from prison.
His barrister argued he was serving a sentence that was “far too long and it properly could have been reduced considerably”.
However, CPS barrister Alison Morgan KC said: “What else was the judge to do but conclude that the risk posed by this applicant from the facts of the offending and previous convictions could not be met with anything other than a life sentence?”
Delivering the appeal judges’ ruling, Lord Justice Edis said Plumb was “obsessed” with Ms Willoughby.
He described Plumb’s plans as “horrifying”, adding: “They are distressing even for seasoned professionals to read.”
