Tim Blackman is frustrated, in turns optimistic and pessimistic, but above all adamant that he will find out what happened to his daughter.
"It just seems to go on in the same way it has always gone on," he says. "I just can't believe we're not getting anywhere."
In a crumpled shirt and wet after getting caught in a shower, the energy that Tim exuded when he arrived in Japan in July to look for Lucie is gradually ebbing away.