Dream Home (2010)

Dream Home (維多利亞壹號 Wai dor lei ah yut ho, literally Victoria No. 1) is a 2010 Hong Kong slasher film directed and co-written by Pang Ho-cheung. The film is the story of Cheng Lai-sheung (Josie Ho) who saves up money to buy her dream home. After the sellers decide to turn her down, she goes into a murderous frenzy.

More at Wikipedia.