I lived in a house with housemates. This house was managed by a company.

One day, a mate goes with friends outside and I'm left with two other housemates which were in their rooms when I cooked myself something to eat. The bell rang. I went to see who it was and was introduced to someone who asked to visit the house. He said he knew A (one of the two housemates who was at home) and they wanted to visit before joining us. I told him there was no visit but he insisted and I accepted thinking it would last 5 minutes and also thinking about my food in the oven. When I accepted he told me a friend of him would join. And after that the one who drove them here would too. And it was at this moment I knew I fucked up.

They entered and started asking me questions about the room number of A. I told them I don't know his room number. They tried to make me ask him to come but I declined because we weren't so close. Two of the three persons stood with me in the kitchen and one other vanished (he tried to find A's room).

I quickly got they were after him so I texted A that I handled it and asked him to stay in his room. At some point the three guys explained that A scammed them and they lost around 7k euros and they believe A owe them.

And the bell rang again. The three guys imagined it was the police and one of them told the other not to panic because they did "nothing wrong".

I got to the portal. By the time I got there the police opened it and in no time I had the flash of a light in my eyes. They asked who I was and claimed they were called for a robbery. I was like "wtf there is no robbery" but nevermind I explained three guys managed to get in the house but were here for something else than visiting.

A policewoman went upstairs to A's room. She asked him to open. He declined but she didn't gave him the choice so he eventually opened. He was really scared. The polioewoman yelled at him saying he lied about the robbery. He added that one of his mate got aggressed. I was the only one with the three guys and they never hit me so I couldn't understand why so much lies. The police asked him to go downstairs he said no, very panicked. She asked if he knew the guys, he said no but he obviously did because he was frightened.

I went downstairs with the woman, finding his colleague laughing with the three guys. I was like "wtf is this". They were very nice with them and at some point they got out.

Turns out a mate was really aggressed. The followed the one who went to a party with his friends at kick him out of the transport, asking him his phone to know who he was related to A. They took information and used that to make me confident enough to let them visit the house.

In the end, A really scammed those guys with crypto. He first denied for a day but ended up telling us.