Police say the disappearance of 25-year-old Matthew Huszar after an office Christmas party Friday is a complete mystery with few clues to guide the investigation.

After a downtown Vancouver staff dinner for the mining company where Huszar was working, he and a group of coworkers moved on to the Lamplighter in Gastown, but the pub had long line and they decided to leave.

Friends said Huszar was headed home and was last seen walking east on Water Street shortly before midnight.

Vancouver Police Const. Jana McGuiness said all investigators have right now is the time, date and direction Huszar was heading and very little after that.

"There's nothing in his background to suggest that anything was wrong, it's just that he's disappeared for no explainable reason," said McGuiness.

Dozens of Huszar's friends took to Vancouver streets again Wednesday to put up posters in hopes someone has seen him.

"His parents are worried sick -- we are worried sick. We have no idea why he would take off," said close friend Devin Tompkins. "We just want to bring Matt home,"

Huszar's colleague, Joel Ashburner, also attended the mining company dinner and was one of the last people to see him after they left the pub.

"Matt said, ‘I'm taking off.' We all shook hands and wished him Merry Christmas -- we all did -- and that was it," said Ashburner. "It's not consistent with Matt to walk off and leave everybody hanging."

Police said they are working intensely to find the young man and have canvassed a large area of the Downtown Eastside and Gastown.

However, they are not releasing any specific details that they have uncovered, such as cell phone use or whether he used a cab chit supplied at the party.

If anyone sees Huszar, they are asked to call 911.

Huszar is white, 5-11 tall and around 160 lbs. He has shoulder-length brown hair and brown eyes.

On Friday evening, he was wearing black dress pants, a white and blue checked shirt, black shoes and a dark green Banana Republic tweed knee-length coat with a coarse checked pattern.

With a report from CTV British Columbia's Lisa Rossington