Rent Messiah: Series 5 (2008)

Renowned detective Joseph Walker is haunted by a past of violence, passion and betrayal - a past which threatens his ability to hunt down a killer with a terrifying message for the world. Heading up an investigation into a series of gruesome and elaborately staged murders, Joseph is puzzled by the bizarre nature of the killings and the presence of mysterious symbols traced into a layer of sand at each murder scene. To end the killings, Joseph must solve the riddle. But the clock is ticking - are Joseph and his new squad just tracking a criminal or are they themselves part of the murderer's plan? XIK