The subtitle on the poster for Spiral reads "From the Book of Saw." But it's clear from this first trailer that it's taking a page from David Fincher's Seven as well.
Chris Rock stars and serves as executive producer in this spin-off (or sequel or prequel; it's not clear yet) as a detective investigating a string of cop murders. All the crime scenes are emblazoned with a red spiral. It may have something to do with Samuel L. Jackson's character, who ominously inquires, "You wanna play games, motherfucker?"
In the trailer's teasing final shot, Rock is chained to a pipe, with only a rusty saw to free himself, reminiscent of the original Saw film. There's no telling who will make it out of the film alive, but it for sure won't be Max Minghella, who plays Rock's partner and talks a lot about his wife and kid. He is definitely going to die.