Knock … if you dare

This macabre collection of moving figures, flashing lights and severed human heads is ready for trick-or-treaters tonight at 1071 Cathcart Blvd.

Owners Natalie Parkkila and Nick Aveling say they’ve just as many scary items in storage as they do out front.

And though they’ve never decorated for Christmas before –  only Halloween –  this might be the year, Aveling said.