Trap: A glass grinder was firing out pieces of broken glass at high speed towards Peter Dunleavy (Patrick McManus), a cop who'd killed a witness years earlier.The trap was testing if Ezekiel Banks ...

The Glass Grinder Trap - Spiral: From The Book Of Saw Lionsgate. Spiral: From the Book of Saw may have been a mostly disappointing attempt to revitalise the dormant horror franchise, ...