The Art of Dying (2000)

A young artist has gone missing in Spain ad a hardened detective takes the case. Six friends become the focus of the investigation and pressured for their knowledge of the artist's whereabouts. They all deny involvement, and soon they have reason to fear for their lives as it appears that a serial killer is hunting them all down. The one friend closest to the artist watches helplessly as his once-quiet life is shattered by incrimination, suspicion, and ultimately--horrific violence.