Examining people's double lives. 4/7. Michael Ross had to keep his identity a secret or he was a dead man, because he was really an undercover agent for Mossad.

1/7. Ned Vincent seemed like a regular guy but appearances can be deceptive. Ned's secret life led to a breakdown because Ned was really a woman called Norah.

2/7. Isabel Fraser talks to Jenny Lucas who spent three years under the Witness Protection Scheme.

3/7. Isabel Fraser talks to Dr Rufus May who trained as a clinical psychologist but hid from his colleagues and patients his secret, that he was a diagnosed schizophrenic.

Examining people's double lives. 5/7. For years Pat Buckley hid what he believed was a shameful secret: that he was a catholic priest in a relationship with another man.

Examining people's double lives. 6/7. To the outside world Jennifer, her husband and two children were a normal happy family, but behind closed doors it was a very different story.

Examining people's double lives. 7/7. To the outside world Jennifer, her husband and two children were a normal happy family, but behind closed doors it was a very different story.