Leah's 30th birthday is on the same day as her brother's wedding. Her childhood crush is back in town for the wedding and he is determined to make sure her birthday does not go by the wayside.

Bodies are turning up around the city, each having met a uniquely gruesome demise. As the investigation proceeds, evidence points to one suspect: John Kramer, the man known as Jigsaw, who has been dead for over 10 years.

A police detective suffering from cancer makes a deal with an informant to get killed in the line of duty, so his family can receive the hefty death benefits from the department.