Sensing Murder Season 4: Episode Guide & Ratings

This week, for the first time ever, the prime suspect in a murder enquiry has turned to Sensing Murder for help. Since 1977, farmer Lindsay Calvert has had to endure local suspicion that he murdered his wife Lesley, who was missing for seven months before her body turned up in an area that had already been searched. Although the coroner ruled that Lesley died from 'unknown causes', and the police thought she had probably committed suicide, Calvert is still convinced that his wife was murdered. Calvert is adamant that he adored his wife. "It was everything I ever dreamed a relationship would be," he says. "We were soul mates - and she was a fantastic mum." Soon after Lesley's disappearance, some local people started to speculate on his possible involvement in the crime, and disturbing things began happening in the Calvert household. "We had a house cow shot. We had four sheep shot up here by the stock yard - gut shot at that, which is very cruel," Calvert explains. "My kids had two pet goats, they both disappeared." His daughter, Sandra Calvert also remembers the unsettling occurrences. "We'd go down to our grandparents for dinner and we'd come back and things had been moved in the house. Things had been pulled out of the hot water cupboard - it was scary." Now, frustrated by the years of suspicion, Calvert wants the psychics to clear his name and unmask the real killer. Psychics Webber and Cruickshank travel into the heart of Taranaki King Country in search of answers about Lesley's mysterious death.

In 2004 Brendan Percy was found dead of hypothermia and dehydration in a sub alpine area above Oamaru in suspicious circumstances. Psychics Kelvin Cruickshank and Sue Nicholson go to new heights to uncover the truth about Brendan's death.

Katikati man Siegfried Newman disappeared on February 25, 2008, after he had dropped his sons Thomas, 9, and Oliver, 7, at Pahoia School. Police carried out a three-day search but found no sign of him. At the time, police said Mr Newman was known to be suffering depression over the loss of his wife Vicki, who had died a few months earlier of cancer.

Sue Nicholson and Deb Webber investigate one of the most complex and intriguing cases ever featured - did Waikato man Jason Dark commit suicide, or was he murdered, as his family believe?

65 year old Alan Gordon Woodford, of Bedford St, Mossburn left his home on foot Saturday morning April 20, 1985 and was never seen or heard of again. Weeks of searching by police, family members and volunteers, taking in all rivers in the area and a shoulder-to-shoulder search of the Takitimu mountains, found nothing.