We used common thriller conventions like suspense, tension, a McGuffin, cliffhangers, and a chase scene to engage the audience. Music was chosen to build an eerie atmosphere during flashback scenes. A cliffhanger at the end leaves the viewer wondering if the murderer will be imprisoned or set free. The McGuffin, shown with close-ups of a briefcase, gives the story more purpose. A chase scene increases suspense over the fate of the man with the briefcase and what it contains.