And before you know it Rick Castle's arch nemesis is back and it appears he's enjoying egging Castle and Beckett on once again.
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When clues to a murder point back to an old case, Castle finds himself back at the 12th precinct to consult.
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At least it looks as though Rick and Kate are working the case together, despite Castle being banned from the precinct.
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Is that the wayward husband that Castle's been hired to follow? Is he more than just unfaithful, could he be a murderer as well?
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Rick really doesn't need those binoculars when the person he's following gets that close. It looks like Rick's been busted.
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It looks as though Richard Castle, Private Investigator finally has a real case that will allow him to use his fun gadgets. He must be thrilled.
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Rick enlists Kate's help when he witnesses his client's murder but has no evidence to prove her husband was the killer on Castle. "I, Witness" is the 13th episode of the show's seventh season.
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So which is it? Has Castle wormed his way back into the investigation or is seeing him here with Beckett some sort of a fluke.
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Castle Quotes

Sometimes the hardest things in life are the things most worth doing.

Castle

The moment we met my life became extraordinary. You taught me more about myself than I knew there was to learn. You are the joy in my heart. You are the last person I want to see every night before I close my eyes. I love you Katherine Beckett and the mystery of you is the one I want to spend the rest of my life exploring. I promise to love you, to be your friend and your partner in crime and life till death do us part and for the time of our lives.

Rick Castle