Zodiac

A serial killer, a cartoonist, a reporter and a cop are trapped in the cat and mouse chase.
After young women start getting brutally murdered in the San Francisco bay, the hunt for the serial killer begins.
The killer sends coded messages to a newspaper and challenges them to decode his identity. A reporter and a cartoonist get particulary interested in the case as does a cop.
Jake Gyllenhall's performance as a cartoonist who is obsessed with the case is remarkable. His obsession with the serial killer in fact breaks his marriage apart but he still continues which does seem a bit weird.
Even though most of the questions remain unanswered toward the end, as it happened it reality, it was a good movie.