The first time the chess board is shown it has the pieces set up wrong with the black square on the right hand diagonal. Then the second time the board is shown when Allie was looking at the, the pieces on the board have been rearranged so the board is oriented correctly.
When Allie suggests the move "Knight to H6" both characters explain the move incorrectly in two different ways. Acosta says it would be stepping into a trap, but it wouldn't because the king is doubled checked by both the knight and the queen, so neither can be captured. Allie then says "it's a sacrifice leaves the king vulnerable." but the knight cant be taken by the pawn because the king would remain in check by the queen and the queen wouldn't be a sacrifice because the knight would still be checking the king. In fact the correct and only move for black is king to h8, and then when the knight goes back to f7 check white can force the draw by repetitions of check with the same knight moves.
At about 13 minutes in, Allie is opening up the shop & she turns the Open/Closed sign around, the door is frosted glass. The next shot angle is from the outside in; the glass door is clear.
The detective states that the murder bullet, a 9mm, came from a Beretta 84. The 380 ACP, or 9 mm short, an extremely common handgun ammunition. The first issue is that the round fired by the model 84 would be referred to in the US as a 380, not a 9mm- which is used for the 9mm parabellum. The other detective makes the same 9mm error later when the murder weapon is found.
Next, while it is possible to determine the possible MAKE of a gun via the lands and grooves from a fired round, there is no way to determine which MODEL it came from since gun makers offer several models in the same caliber that use the same land and groove pattern. In this case, the Beretta 83 and 85 also use the same 380 round. The 84 and 85 have the same barrel, while the 83 uses a slightly longer barrel.
Next, while it is possible to determine the possible MAKE of a gun via the lands and grooves from a fired round, there is no way to determine which MODEL it came from since gun makers offer several models in the same caliber that use the same land and groove pattern. In this case, the Beretta 83 and 85 also use the same 380 round. The 84 and 85 have the same barrel, while the 83 uses a slightly longer barrel.
Casting error: Jon Cor plays Alexa PenaVega's blood (not adopted) brother. While PenaVega is clearly Hispanic, Cor is clearly not. She was born in Miami, FL and he is Canadian.