For more than an hour, there was a shouting match, followed by a very loud thud, crying and more shouting.
Then total silence.
This was what an Ang Mo Kio resident heard from the flat above hers from 7.30am on Thursday.
Hours later, the police found a woman, 30, dead in a two-room unit on the ninth storey of Block 406, Ang Mo Kio Avenue 10, after receiving a call at about 12.30pm.
They later arrested a man, 40, for the murder of the woman, who is believed to be a foreigner. He had abrasions on his left cheek and forehead.
The New Paper understands that the man was in the flat when police arrived and the woman's body found in the bedroom. No murder weapon was found.
Recalling the incident, the resident, Ms Ina Haneysha, 27, said she was just about to take a nap after returning from an early morning run when she heard the commotion.
The make-up artist told TNP: "I was going to sleep when I heard noises like a woman crying. She was speaking in Vietnamese or Thai.
"I also heard a man who sounded very sad and disappointed. They fought and then I heard the sound of something banging against a wardrobe."
She described the sound as a very loud thud, as if someone had thrown something against the wardrobe.
After the banging sounds, she continued to hear a woman crying and a man shouting until about 9am, when it stopped suddenly.
Ms Ina, who was traumatised after finding out about the murder, said: "I thought she had stopped crying because she was tired. I am so shocked. I didn't expect that she would be gone."
Although arguments and quarrelling from the unit were common, she said Thursday's commotion at that time in the morning was unusual.
"They usually fight in the middle of the night. It was usual for them to fight and argue until about 4am. He would shout and she would cry," she said.
Neighbours living on the same floor as the suspect said they had often seen groups of different women going in and out of the flat.
Some of them would stay there for a few weeks to a few months and then be replaced by other women.
They would go out wearing sexy clothes and heavy make-up late at night and return in the wee hours, the neighbours said.
Mr Vincent Edward, 21, who lives next door to the suspect, said he had seen the man with groups of women.
"They always had arguments. He was always quarrelling with the girls," he said. "Once I heard him fighting with a woman and there was pushing on the front gate. I could hear him say in Mandarin, 'Leave, go away'."
Mr Vincent, who is not working, said the police went to the flat several times last year when the quarrels got out of hand.
He said the quarrels had been going on almost every day since his neighbour moved in about four years ago.
"My late mother told me that his ex-wife used to live there. When he came out of prison, he moved into the unit and the ex-wife moved out," Mr Vincent said.
Recalling Thursday's incident, he said: "I was playing computer games when I heard a very loud thump against the wall. It happened in between their arguments.
"It must have been very loud because I had my earphones on."
He said he didn't really pay attention to the couple's arguments because "there's always quarrelling".
Ms Alice Yeow, who owns a nearby furniture shop, recognised the suspect when she was shown a photograph of him.
"He has been to my shop to look at furniture. He said his girlfriend had bought things from me," she said.
When told that a woman had been found dead in his flat, Ms Yeow, who's in her 30s, asked: "Is she a Vietnamese woman?"
She recalled that a Vietnamese woman had bought a single mattress from her about two months ago.
"She's very pretty and has long hair. She knows how to speak Mandarin," she added.
The police said they received a call for assistance at 12.33pm on Thursday.
When they arrived, they found the body of a 30-year-old woman lying motionless in a unit of the block.
The woman was pronounced dead by paramedics at the scene.
Police investigations are ongoing.