A taxi-driver stabbed his mother-in-law to death with a Gurkha knife when she scolded him over the way he treated her daughter, the High Court heard yesterday. Wan Tak, 25, claims she provoked him into plunging the curved kukri into her body more than 40 times. He told police he killed Lu Lin, 46, after she summoned him to his estranged wife's flat to berate him for the way he treated her. Lu, who had been in Hong Kong less than a week, was repeatedly stabbed in the upper part of her body. One blow penetrated a lung. Prosecutor John McMaster said neighbours heard her crying out. Forensic evidence suggested her arms had been tightly gripped while she was stabbed and that she had suffered injuries while trying to defend herself, he added. After the killing Wan wrapped the body in a blanket and dumped it in a telephone exchange room two floors below the flat. He was caught clearing up the blood by his wife's friend, Chiu Yu-ying, who was also living in the flat. She found Wan in the flat wearing a T-shirt and no trousers. 'There appeared to be blood on his hands and there was a smell of disinfectant. The flat was in a mess,' Mr McMaster said. Ms Chiu alerted a caretaker who went to the flat. 'Blood appeared to be spread throughout the flat,' Mr McMaster said. Wan was still in the flat when the police arrived. A search of the building revealed the body. He allegedly told officers: 'My mother-in-law was killed by me.' Wan later claimed the attack was triggered by Lu scolding him for treating her daughter badly. Mr McMaster said Wan told the police: 'Lu Lin scolded me for not treating her daughter well. I punched her twice out of anger. Then there was a struggle.' Wan said it was the mother-in-law who produced the knife during the fight. Mr McMaster said the jury would have to decide whether Lu had provoked Wan into killing her. He said the jury must consider whether he went berserk and stabbed her in a frenzy, or deliberately killed her as an act of revenge. At the time of the killing, Wan's wife was away in China. Wan pleaded not guilty to murder. The trial, before Mr Justice Michael Stuart-Moore, continues today.