When there was no breakfast ready as usual at 7am on Sunday, she knew something was wrong.
So the employer went to check on her maid who had started working for her two weeks ago.
Ms Siti, 29, an Indonesian, was not in the room, her employer, who declined to be named, told Shin Min Daily News.
But she spotted yellow cloth hanging out from the window of her fourth-storey Toa Payoh North flat.
Suspecting the worst, the woman went downstairs to investigate.
There, she saw her maid's motionless body.
It is not clear if she had fallen or the makeshift rope had given way.
The family declined to be interviewed when approached by The New Paper at their three-room flat on Sunday evening.
A teary-eyed middle-aged woman requested for privacy and said she had not eaten for the whole day.
Shin Min reported that the incident took place early on Sunday morning.
It is understood that the employers called the police.
A neighbour living on the second storey was awake at about 7.45 am and saw the gruesome scene when she went to smoke by the window.
"She was a slim woman. Her face was down and there was a lot of blood.