Hansel and Gretel/YMMV

The original story:

 * Crowning Music of Awesome: Humperdinck's opera.
 * Unfortunate Implications: Old women who live alone and appear to treat children kindly are really evil cannibal witches! (It gets worse when you consider that old widows were and in certain places still are accused of and executed for witchcraft.)

The Korean film:

 * Complete Monster - The deacon and the original owner of the orphanage. Both Would Hurt a Child and are pedophiles.
 * Tastes Like Diabetes - The house is made to be like this.