The Assignment.

Harrison (David Kara) and Leo (Francis Ryan) are two mates studying together at university in Melbourne, Australia, who receive a unique assignment as part of their studies in criminal psychology... to explain how, hypothetically, they might commit a perfect murder. From writer/director James Cunningham, short film The Assignment is a slick thriller delivering a sexy modern twist on the slasher genre with heavy hints of Hitchcock, lashings of Carpenter and a pinch of Dexter... all on rooftop at sunset.