Death Becomes Her

In one small bottle...The fountain of youth. The secret of eternal life. The power of an ancient potion.
Sometimes it works...sometimes it dosen't.

Helen and Madeline hate each other. Madeline is married to Ernest, who is having an affair with Helen. Both women rely on Ernest for plastic surgery for their continued good looks, so when Madeline finds a cure for ageing, Helen gets it too. It isn't until both become immortal that they realise that 'life' will never be the same again.