What is it called ?

[killerklown]

I'm looking for thr name of a TV programe I saw years ago.
I think it was on channel 4.
A young mans mother commited suicide by walking into the sea when he was a kid.
All he had of her was an old photo.
At the end he did a jump on his motorbike and It landed on him. But he got up and walked to an ambulance before collapsing dead.. Then someonesays he was probably dead as soon as the bike landed on him, and that the walking was just a muscle reaction.
Please help, I can't sleep.
Thanx in advance.