Singapore's most bizarre murder case drew to a close on 25 November 1988 when Adrian Lim his wife Catherine Tan Mui Choo & mistress Hoe Kah Hong were hanged at Changi Prison After two children were found dead within a fortnight in 1981 the Toa Payoh 'ritual killings' proved shocking for the revelations about self-styled spirit medium Adrian Lim's greed depravity & cruelty The confidence trickster persuaded numerous women that he possessed supernatural powers & they paid him with money valuables & sex He tortured his victims with primitive electric shock treatments that left one man dead He was a monster who beat slapped & kicked his women to make them fear & obey him as he acted out his every lustful perversion He turned his wife into a prostitute & stripper He made his mistress lure the children to their deaths Sentencing all three to hang the trial judges said of Adrian Lim " We are repulsed by his abominable & depraved conduct"