Dalziel and Pascoe

Dalziel is investigating the disapperance of a teenage girl who was addicted to the Internet. He gets rough with the only suspect they have and gets booted off the case. Then a girl gets murdered at a holiday resort. Not any girl - a popular girl who won a TV reality contest. Then one of the holiday makers turns up dead as well. There are plenty of suspects but no real motive. Dalziel comes back onto the case. Another colleague is investigating a diamond heist. After Pascoe discovers a suspect from that case, by falling into a swimming pool, it looks like the cases could be linked