There are crimes so unspeakably horrendous they seem unforgivable. And yet, some people do manage to forgive.

Forgiveness: Stories for Our Time focuses on four individuals who have lived through events so painful and horrific they are unimaginable to most of us.

Lesley Parrott's young daughter was stalked, raped and strangled. Anne Marie Hagan's father was murdered by the next-door neighbour. Alan McBride's wife and eight others were killed in an IRA bombing in Belfast. Reverend Julie Nicholson's daughter was killed on the London underground in an al Queda bombing in 2004.

Through heartfelt interviews, archival footage and images shot by acclaimed cinematographer John Walker, filmmaker Johanna Lunn tells the stories of these characters as they absorb, cope with and attempt to move beyond brutal events in their lives.

In a world wracked by increasing violence and horror, Forgiveness: Stories for Our Time brings hope that there are other possibilities beyond blind revenge - and that in forgiving others we can set ourselves free.