"What was the point of it?": Collateral viewers were seriously confused by the final episode

From the tale of two murders to a troubled shadow transport secretary and, of course, Billie Piper launching a pizza on the floor, Collateral had plenty of plots thrown into its story. But did the final episode weave them all into a satisfying conclusion?

Not exactly. Although we saw Karen (Piper) get her money by stealing from her au pair, Kip (Carey Mulligan) uncover a people smuggling operation, and Peter Westbourne (Richard McCabe) revealed as the villain behind the whole thing, viewers were left confused. In particular, many couldn't see the point of several characters.

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Some simply thought the plot was spread too thinly across the show's many faces...

And viewers were left disappointed that the references to Kip’s pole vaulting career never had a payoff...

But although there were those who were satisfied with the "intelligent" ending...

...others were left asking what the point of the drama was.