The Understudy
... that the plot of Inside No. 9 episode "The Understudy" both revolved around and was based upon Shakespeare's Macbeth?
... that the plot of <i id="mwDB0"><a href="./Inside_No._9" id="mwDB4" rel="mw:WikiLink" title="Inside No. 9">Inside No. 9</a></i> episode "<b id="mwDB8"><a href="./The_Understudy_(Inside_No._9)" id="mwDCA" rel="mw:WikiLink" title="The Understudy (Inside No. 9)">The Understudy</a></b>" both revolved around and was based upon <a class="mw-redirect" href="./Shakespeare" id="mwDCE" rel="mw:WikiLink" title="Shakespeare">Shakespeare</a>'s <i id="mwDCI"><a href="./Macbeth" id="mwDCM" rel="mw:WikiLink" title="Macbeth">Macbeth</a></i>?