This movie came out in the 80s or 90s it was about a family that moved to a lake and the father or maybe the daughter broke a mirror near a well. A killing spree beganaround the lake. One in particular stands out, A couple was making out in a Mustang near a boathouse and a spear came thru the windshield and impaled the both of them. The killing spree ended when all the peices of the mirror were put back together. Does anyone remeber thisone and WHAT IS THE NAME OF IT . ITS BEEN BUGGING ME FOR A LONG TIME. THANKS