Saw Unleashed

Saw Unleashed (known by its teaser name Saw X) is the 10th film of the Saw series. This film takes place three years before Spiral, where a killer known by the name Fredrick Lopez, puts five people (three for traps and two for tests) in games of terror.

Plot
A man serving as a police officer for two years named Louis is put in a trap where he must find a key through a bucket of acid (similar to the Angel Trap from Saw III). Suddenly, after when he is fully poisoned, he is found and pronounced dead by the MPD (Memphis Police Department). The killer who abducted Louis is believed to be former drug dealer Fredrick Lopez. However, in the nick of time, Lopez abducts one of the MPD officers, Harry E. Walter, in yet another trap. For Harry's trap, he must be by a 16-foot ice cube surrounded by pendulums. The key is found in one of these pendulums. In order to survive, he "must find the key or perish for life."