WHILE he was engaged in sex with different women, the intimate moments were filmed with a video camera hidden in a plastic bag with a slit.
Some women were willing parties for the filming, but others were filmed without their consent.
Chen Guilin, alias Gary Ng, then posted some of the video clips on the Internet with the women's faces masked.
The 28-year-old yesterday pleaded guilty to possessing 507 obscene films, of which more than 480 were clips of him having sex with various women.
The items were seized by police from his flat at Yishun Street 22 in June last year. The police also found another person's identity card in his flat.
The former property agent yesterday also admitted to seven other offences, including breaking into the home of his client while she was away, forgery and criminal breach of trust.
In all, he committed 21 offences over a four-year period from 2006 to June last year involving property worth $171,770.
Deputy Public Prosecutor Paul Wong Chun Yi said Chen broke into housewife Poh Yen Chern's Water Place condominium unit in Tanjong Rhu Road and stole $1,456 worth of property from the 39-year-old while the family was overseas in August 2009.
The accused, who was Madam Poh's property agent when she bought the unit in 2007, had duplicated her access card to commit the offence.
DPP Wong said Chen had also broken into another client's unit at Water Place in 2008, where he stole 43-year-old Madam Wang Tong's OCBC Bank cheque book.
He practised signing her signature and forged three cash cheques totalling $81,150 in September that year.
Three months later, he forged the signature of another woman, Ms Yao Xiao Li, 31, and issued himself a $10,000 cheque. At that time, he was living in her Strata condo unit in Essex Road with his then girlfriend, who was a friend of Ms Yao's.
District Judge Ronald Gwee will sentence Chen on Jan 19. He is out on $72,000 bail.