Can’t remeber horror movie with house trap

Okay so in about 2007 I watched this horror movie and I’m dying to remeber it. All I can remeber is that there was an intruder in a house. There was a blonde older sister who had a younger brother. The brother was duct taped to a wooden board and was about to be killed  by the killer but the older sister saved him. He then ran an hid under a sink. Eventually the cops showed up and saved both of them. I also remeber there was a trap by the front door so that when you stepped on it you fell into the floor and fell into a bunch of knives. PLEASE HELP.

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