Hidden Floor on AllMovie

A young mother and her six year old daughter move into a new apartment building where the eccentric tenants begin dying in droves. Despite the fact that the two newest tenants live quietly, their downstairs neighbor repeatedly complains about noises coming from their apartment. When the neighbors' strange behavior starts to turn aggressive and the young girl begins exhibiting similar traits, the growing tensions in the building are overshadowed by a series of bizarre deaths. Now, in order to save herself and her daughter, the concerned mother races to solve the mystery of the killings, and discover what is transforming everyone in the building into raving psychopaths.