Film Released in Canada as Treed Murray - Blip
If you search for the title "Treed Murray", you will find a more descriptive review.
Excellent Film.
"Smart, savvy advertising executive Murray Roberts (Hewlett) is in control of his urban world. But a run-in with a would-be mugger and his gang in a large metropolitan park reveals the limits of his control. Cornered, Murray seeks refuge in a massive tree, leaving him stranded and surrounded by the young thugs and their leader Shark. Murray and Shark embark on a deadly war of wits that ultimately leaves the gang devastated and Murray confronted with the harsh reality of his own life."