Detective Karamchand had been called to investigate the disappearance of a woman called Jaya Sharma.
He knocked on the door of the house she had been living in with her husband.
Parth Sharma answered. 'Thanks for coming, Detective. My wife went missing today. I noticed a few weird things around the house, but I left everything as it was for your arrival. Nobody else lives in the house.'
Karamchand was led to the dining room. 'Last time I saw Jaya, she was having breakfast at 7am in this room today, before I left for work. When I came home at 5pm today, the breakfast was still on the table. There it is.' He gestured towards the table, which had breakfast on it. 'The suspicious thing is, she never goes out for more than 5 hours at a time and she always lets me know. I am suspicious.'
As Karamchand walked towards the table, he noticed a scrumpled piece of paper on the floor. It didn't have anything written on it.
He accidentally knocked over a coffee cup on the dining table, spilling it on his hand. Fortunately, it had only scalded his hand slightly. 'Sorry!' He walked to the sink to rinse it.
'What a shame,' said Parth. 'Jaya doesn't get on very well without her coffee. It's a shame she didn't drink it. Personally, I hate coffee.'
In the sink was a Post-It with 'Go Inside' written on it. There was a long pink string tied between two cabinet handles at the very top of the kitchen. The window was open and a smashed bowl was on the windowsill.
'From this evidence, Parth, either you are faking the disappearance, or you are involved.'
How did he work it out?