At 9 minutes, after discovering Lauras dead body, Adrián grasps her tightly in an upright sitting position, but as seconds later the police officers arrive he is seen kneeling above the body which is laying down again.
The broken driver's window of Daniel's car "disappears" as if completely rolled down.
At 7'24", Adrián's jacket's collar is up then down in the next shot.
There is no ink coming out of the pen and around its cap despite it linking on the shirt.
At 50'25", Laura starts typing a bunch of letters at random on the keyboard but only 3 letters followed by a series of numbers show on the computer screen.
At 38', Laura drives the car and turns her head to look directly to Adrián for over 10 seconds in a row when they just had an accident for that very reason.
The close-up shoot on Adrián's face at 1:39'06" fails to properly focus on his eyes but rather on the tip of his nose when he removes the pen from in front of his face.
The flashing hazard lights of Laura's and Tomás's cars are not synchronized with the single clicking sounds.
When you see the car dumped into the sea from the bird view you clearly see the lighting equipment which lights up the whole scene reflecting in the back window of the car.
At 1:24:54, Adrián finally accedes to Virginia's request to mark the location of Daniel's body on a map. However, the map Virginia gives him strangely shows the town of Bierge roughly 100 kilometres away from where it is in real life, in a desolate patch of mountainous terrain. The only human settlement in this location is a lone mountain refuge.
The card used to access the bank system would not work because it was reported all over the news that the person the card belongs to is missing/presumed dead. In this case, the card would have been disabled by the bank.
Even if it was possible to access the banking system and create money transfers under Garrido's name, the timestamps of the transfers would have been wrong.
The alibi of Adrián is based on the hotel reservation and a flight ticket. However, while checking the ticket, the police would have noticed that it had not been used by Adrián since he was together with Laura.
The blackmailer's voice asks for unmarked euro notes; but in Spain, marking bank notes is illegal.
At the end, after revealing that the driver is the new witness, Virginia suggests that Adrián claims he had never been in the accident, only Laura was. However, the driver was the only person who saw both Adrián and Laura at the accident, as Adrián reminds Virginia immediately. As Virginia proved to be very attentive and thoughtful, it's weird for her to make that blunder without a reason - and no reason for it was revealed.