Ray and Debra get caught up in telling lies in order to cover up previous falsehoods after Ray fibs to Marie about why he missed a scheduled time with her. When the lies snowball into an out of control degree, Marie picks up the scent and traces everything back to the initial fib. Marie seems to have won, until Frank reveals a damaging lie of her own.
This was one of the funniest episodes of Raymond. The way they all lied was great and when Marie found out putting all the pieces together was great. One of my favourite episodes. 9.5 out of 10.