The finale of Sherlock Series Four is fast approaching.
After last weekend's shock plot twist, fans will be waiting with bated breath to find out what will happen to the detective (Benedict Cumberbatch) and his sidekick Watson (Martin Freeman).
Sherlock writer Mark Gatiss has promised the finale will be 'absolutely crazy'. following a mixed response from viewers to the current series.
While some fans have loyally watched every episode since the show's inception in 2010, others have strayed.
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