Chameleon: Long Goodbye

Goro Noda with his three friends live a dull life making money anyway they can, even the odd wedding scam. One day, after a successful scam, they happen to witness a kidnapping and Goro records the incident on his mobile phone. The kidnapped man appears to be a key witness in a high-profile political corruption case. In spite of all Goro's precautions the perpetrators are aware of incriminating evidence on hand. This one recording soon cascades into a series of events that push Goro further and further into a rage that culminates into a full blown action set piece to close the film.
(Source: asiacue)