The couple kept to themselves and were well mannered, save for an argument or two.
That was how neighbours described Madam Jasvinder Kaur and her husband, Mr Harvinder Singh, both 33.
Madam Kaur's headless body was found in Whampoa River last Thursday.
Indian national Gursharan Singh, 25, who is believed to be the husband's friend, was arrested on Wednesday and was charged with her murder last Friday.
The police are now looking for the husband, who left the country through Woodlands checkpoint half an hour before his wife's body was found.
According to court documents, the murder happened between 10pm on Dec 10 and 7.33am on Dec 12 at 228A, Balestier Road, a three-storey shophouse. There are 14 rooms in the shophouse, each about half the size of an HDB room.
Neighbours said the couple, who moved in barely two weeks before the murder, were the only Indian nationals living there.
Mr Frankie Chai, 24, who has been living there for a year, said he had seen the couple but never interacted with them.
The cook described Madam Kaur as slim and fair, while her husband has a big build.
The Chinese national said in Mandarin: "They didn't seem to be on good terms. I saw them cooking their own food separately in the shared kitchen."