[209 P.2d 581]; West v. Henderson (1991) 227 Cal.App.3d 1578, 1583-1584 [278 Cal.Rptr. 570]; Continental Airlines, Inc. v. McDonnell Douglas Corp. (1989) 216 Cal.App.3d 388, 418-421 [264 Cal.Rptr. 779].)
The law in California was stated by our Supreme Court as follows: “Our conception of the rule which permits parol evidence of fraud to establish the invalidity of the instrument is that it must tend to establish some independent fact or representation, some fraud in the procurement of the instrument or some breach of confidence concerning its use, and not a promise directly at variance with the promise of the writing.” (Bank of America etc. Assn. v. Pendergrass, supra, 4 Cal.2d at p. 263.) The law in New Jersey is the same. (Winoka Village v. Tate, supra, 84 A.2d at p. 628 [“ ‘The general rule is clear that a parol agreement which is in terms contradictory of the express words of a contemporaneous or subsequent written contract, properly interpreted, necessarily is ineffectual and evidence of it inadmissible, whether the parol agreement be called collateral or not.’ ”].)
Here, plaintiffs offered the business plan for the express purpose of showing a fraudulent oral promise which was directly at variance with the terms of the Purchase Agreement. The alleged unequivocal oral promise to fund the business plan, elicited in testimony and referred to repeatedly by plaintiffs’ trial attorney both in opening and in closing argument, varied and contradicted the specific language in paragraph 5 of the Purchase Agreement giving Universal “the sole right to determine any amounts of capital resources which it may invest in the Luminoptics Division . . . .” The evidence of that alleged promissory fraud was therefore improperly admitted. (Continental Airlines, Inc. v. McDonnell Douglas Corp., supra, 216 Cal.App.3d at pp. 419-421.)
Surrounding Circumstances
We have concluded that the trial court erred in admitting the business plan either to supplement, vary or define the express terms of the Purchase Agreement, or as evidence of an alleged oral agreement to fund the business plan. By this ruling we do not find the business plan inadmissible for all purposes.
Code of Civil Procedure section 1860 provides: “For the proper construction of an instrument, the circumstances under which it was made, including the situation of the subject of the instrument, and of the parties to it, may also be shown, so that the Judge be placed in the position of those whose language he is to interpret.” Indeed, defendants themselves submitted a proposed jury instruction to this effect. Plaintiffs argue that the business plan