The context of the following conversation is Ash asked Casey anything on the subject to see if they were telling the truth about their knowledge but they couldn't answer the questions.:
Casey says I think Ash might be on to me..
The friend responds Oh no! Really?.
Casey responds Yeah, he was asking me all these questions and I didn't know how to answer them..
The friend responds what did you do?.
Casey responds I just played dumb and said I didn't know to anything he asked me..
The friend responds Well I highly doubt that worked well.